Executive Producer Sean Hayes joins the show's cast and crew as they pull back the curtain on the secret world of fairytales in this behind-the-scenes sneak peek of Grimm.

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The cast explain how the new drama series "Grimm" is inspired by the classic, and sometimes terrifying, Grimm's Fairy Tales.

Nick Burkhardt's life is completely transformed when his family's legacy is revealed to him and he discovers that he is a Grimm, a monster hunter who can see the creatures for what they really are.

A barbaric family history is revealed when Nick and Hank investigate a case of breaking and entering. Meanwhile, Nick assigns Monroe to look after Aunt Marie.

The station is abuzz as Nick and Hank are called to a case where an innocent flash mob results in a gruesome homicide. As Nick delves further into the investigation, he learns more about his unique family history, and finds himself at odds when he and Hank are assigned to protect a dark character from his recent past.

After investigating a strange cluster of female deaths and disappearances, Nick sends Monroe undercover to get a whiff of a hypnotic suspect. In the meantime, a stranger shows up looking to avenge the death of his friend at the hands of a Grimm, but he'll have to get past Captain Renard.

Nick and Hank's investigation of a dead high school teacher leads them to the school's outcast, Roddy. Nick realizes that there's more to Roddy than meets the eye, and enlists Monroe's help to get through to the troubled teenager before he exacts revenge on the students who wronged him. Meanwhile, Nick learns that his presence is beginning to affect the creature world.

Nick is called to a suspected arson case, which exposes a longstanding family feud that brings Monroe face-to-face with characters from his troubled past. While Monroe wrestles with restraining his wild side, it's up to Nick to keep everything from going up in flames.

A mysterious homicide deep in the woods leads to Nick and Hank reopening a long-cold missing persons case. When Nick suspects this abducted person might be a feral creature, he asks Monroe to help remind this wild child of her human nature.

A prison escapee returns to Portland and seeks revenge on everyone who got him arrested. Nick notices his unusual strength and high tolerance of pain and calls Monroe to help put his rampage to an end.

Nick and Hank investigate a murder victim left in a dumpster, and soon discover that the trail leads to an abusive boyfriend, an arrogant lawyer, and a meek junk yard owner. Meanwhile, Juliette notices someone watching her and Nick, and Monroe gets a message from the creature community.

After some of Portland's homeless youth go missing, Nick discovers a black market supplying the Grimm world with human organs. As the investigation continues, Nick and Juliette befriend a pair of homeless siblings, Hanson and Gracie, whose friends have gone missing.

Nick and Hank search for a dangerous heartbreaker who leaves behind a gruesome corpse and apparently her finger. Nick and Juliette's safety is threatened when the creature world begins to discover his identity.

An underground fight club where monsters participate in blood battles is tied to a murder that Nick and Hank are investigating.

A failed robbery leads Nick and Hank to powerful rare coins. Meanwhile, a suspect in the case may have information regarding the death of Nick's parents.

Nick finds himself in the heated world of Portland fire dancing where he meets a woman who might just be too hot to handle.

Nick looks into a theft and murder at a spice shop and discovers that it was owned by a Wesen, and that the thieves were after a dangerous drug. Meanwhile, Hank falls under Adalind's sway and Wu gets caught in the middle.

Nick tries to take Juliette on a romantic weekend but soon becomes embroiled in a case involving a neighbor couple. Meanwhile, Monroe and Hank both find themselves romantically involved with new women.

Nick finally discovers that Hank is dating Adalind, the same Hexenbiest responsible for Marie's death. Meanwhile, Monroe and his girlfriend Rosalee have to secretly help Hank and Wu, and Renard gets a visit that threatens his position among the creature leadership.

Nick and Hank find a murder crime trail backtracks abroad; when Nick finds Monroe and Rosalee are harboring the prime suspect, an apparent conflict arises between police duties and his inner Grimm.

As Nick delves into the trailer's weapons cabinet and his inner Grimm, the investigation of a dead construction worker leads him into a long-standing conflict in the creature world.

Nick and Hank are called to investigate the mysterious death of a wealthy matriarch, after her stepdaughter loses everything in a Ponzi scheme. Meanwhile, Juliette does some digging into the mysterious death of Nick’s parents in an effort to help him find closure.

When Juliette stumbles upon a horrifying murder, Nick learns the suspected creature is unable to return to a human form; Hank sees something inexplicable.

As Nick delves deeper into his life as a Grimm, a trail of grotesque murders reignites the search for the elusive gold coins.

After their face-off with Kimura, Nick finds himself trying to come to grips with the return of his mother, Kelly Burkhardt. A trail of brutal murders unveils a foreign conspiracy to hunt down Nick, leading to several revelations about his past. Meanwhile, Juliette still lies in her mysteriously-induced coma as Rosalee and Monroe work tirelessly to bring her out of it safely. Elsewhere, Hank struggles with the shocking truths he’s recently seen and Captain Renard deals with unexpected family issues when his estranged brother comes back into his life.

As Nick and his mother continue to battle the Mauvais Dentes, Monroe and Rosalee (Bree Turner) fight against the clock to save Juliette. More details are revealed about the source of Juliette’s illness, resulting in an epic showdown. Back at the precinct, Hank senses that something is amiss when Nick lands in hot water with the FBI. Meanwhile, Captain Renard continues to reveal himself as he deals with his estranged brother.

As Hank continues to seek help to cope with the inexplicable siting he had, an old friend, Jarold Kempfer, needs his help when his daughter goes missing. Nick’s expertise as a Grimm comes in to play as he investigates the disturbing motives linked to the disappearance.

During the investigation of an accident site, Nick discovers a disease that is quickly spreading; Monroe and Rosalee come across an infected creature; Captain Renard gets a tip about a dangerous fugitive.

When a local Reverend reports that his church has been robbed, Nick quickly learns that it’s a Wesen church, and enlists Monroe to check for any suspicious activity regarding the shepherd’s flock. Meanwhile, Nick and Juliette continue to figure out the rules of their relationship as a dangerous opponent lurks in the shadows with his sites on Nick.

Angelina comes to town with bad news; Nick asks Hank for help keeping Monroe safe; Captain Renard receives a visit from a past acquaintance.

An investigation into a grisly murder leads Hank and Nick to a seemingly unstable man who is on the run with his daughter; Monroe realizes that filling in for Rosalee will be harder than he thought.

Hank and Nick investigate when a high school competition turns deadly; Capt. Renard is faced with an unwanted infatuation.

Nick realizes a series of child abductions that he is investigating bear a striking resemblance to the Hispanic legend of ``La Llorona.''

When a brutal vigilante homicide is made public, it sends Portland’s Wesen community into a frenzy. As Nick investigates further, he discovers a pattern similar to that of a particularly brutal line of past Grimms. Is there another Grimm in town, or is Nick dealing with a sadistic copycat? Meanwhile, Captain Renard takes it upon himself to offer Juliette comfort in handling her ongoing dilemma with Nick.

Hank starts reflecting on an arrest he made earlier in his career regarding a man who committed murder claiming “self-defense against monsters.” With the man’s death sentence rapidly approaching and the knowledge he’s recently gathered from Nick, Hank begins to wonder if there was more truth to the man’s seemingly absurd story then he once thought. Back at the spice shop, Monroe finds himself involved in a situation he never saw coming.

Adalind returns to wreak havoc as she avenges her mother's death; Captain Renard's obsession escalates; Monroe receives a surprise visit.

Bud Wurstner shows up at the Spice Shop to meet Monroe and Rosalee, whom Nick Burkhardt recommended he see regarding his hair loss problem. Bud asks if Rosalee has a remedy for hair loss for his "friend", and satisfied with their answer, he excitedly leaves.

Rosalee employs the help of Monroe in making the hair regrowth formula.

Bud returns to thank Monroe and Rosalee for preparing the formula "for his friend". Rosalee also tries Monroe's "creative" baking, which involved making a dandelion-seaweed cookie.

Bud comes into Rosalee's shop panicking because his hair (and his friend's hair) is growing out of control.

After Nick learns about Juliette and Captain Renard, he must deal with the consequences. Things get even more complicated when Nick is called to investigate his own crime. Meanwhile, the search for the key intensifies as Captain Renard finds Nick’s trailer and makes a surprising alliance. With Rosalee’s help, Monroe informs Nick that they might be able to stop what’s going on with Renard and Juliette before it goes too far. Elsewhere, Wu responds to a bizarre shooting at Nick and Juliette’s house.

Nick, Monroe and Hank discover that members of a Wesen community have been responsible for a series of bank robberies; Juliette questions her mental state.

While trying to work out the ramifications of his new alliance with Renard, Nick investigates a murder where the victim was blinded with parasites sprayed into her eyes. Meanwhile, Juliette's hallucinations become clearer, and Adalind asks for help with her pregnancy.

When a gruesome homicide brings an office party to a screeching halt, Nick and Hank find themselves battling a Wesen on a completely new platform - online. Meanwhile, Juliette's mysterious hallucinations finally start to take shape, giving them a whole new meaning.

While on jury duty, Rosalee tasks Nick, Hank and Monroe to help stop a defense attorney from using his particular “Wesen wiles” to overturn what should be an open-and-shut murder case. Back at the precinct, Captain Renard brings Nick and Hank in on his own recent dealings with the Verrat, to keep them on their toes. Meanwhile, a return to the trailer brings a flurry of memories of Nick rushing back to Juliette.

Nick finds himself fighting a wildly different sort of nature freak in a desperate attempt to keep a volcano from burying Portland in lava. Meanwhile a pregnant Adalind meets a powerful new ally in Europe. Meanwhile, Juliette seeks out help after becoming overwhelmed by the latest side effect of her recovery – multiple memories of Nick showing up everywhere.

Mysterious cow mutilations and reports of glowing creatures put Nick on a case that forces him to question the existence of aliens within the Wesen world. He also meets a strange UFO expert who seems to know more than he’s letting on. Meanwhile, Nick digs further into the key, and Juliette’s romantic memories of Nick start coming back in a big way.

Nick discovers a muse-like Wesen with the ability to influence those she gets close to – some with positive results, others with terrifying ones. Nick must find a way to get close without losing himself in the process. Juliette arranges a dinner date with Nick in the hopes of clearing the air, but their plans go awry as the case intensifies. Meanwhile, Rosalee takes her first visit to Aunt Marie’s trailer.

Nick and Hank discover a new kind of strange when they investigate suspects being found dead - for the second time. In Europe, Adalind finds herself in the middle of a feud between Frau Pech and Stefania while working over the details of her pending transaction. Meanwhile, determined to remember every last detail to get things started once more, Juliette insists Monroe share with her Nick’s darkest secret - the world of Grimms and Wesen.

Just when things look like they’re back to normal with Juliette, Nick is called to investigate a flurry of rage-fueled assaults happening all over Portland. He goes to Monroe and Rosalee for help battling Portland’s newest wave of "undead." As if that weren’t enough, Captain Renard informs Nick that his brother Eric is in town on family business. Meanwhile, Stefania and Frau Pech methodically use their alliances with Adalind to battle one another.

Officers Wu and Franco question Bud at his repair shop to determine if he has witnessed anything out of the ordinary.

Realizing he is trapped and doesn't have his cell phone call for help, Bud attempts a dangerous retrieval.

Bud calls Wu and Franco for help with the attention of freeing himself from his predicament. Unfortunately, all three become entangled.

When Bud, Wu, and Franco are trapped in a disconnected freezer, backup arrives in a surprising way.

A panicked Juliette, Monroe, and Rosalee enlist Hank's help in fending off a zombie hoard while trying to figure out what happened to Nick. Knowing the truth, Captain Renard takes measures to help rescue Nick from the clutches of his brother, Eric. Elsewhere, along with the help of the mysterious Stefania, Adalind finds herself facing her most gruesome task yet in her effort to regain her Hexenbiest abilities.

Monroe, Hank, Rosalee and Juliette track down a manic Nick and do all they can to find him and reverse what's been done to him before he causes any more damage. Meanwhile, Captain Renard does his best to clean up the zombie fallout on all fronts - domestic and international. Elsewhere, the more time Adalind spends with Stefania, the more disturbing things seem to get in her quest to regain her Hexenbiest abilities.

A series of disturbing crime scenes leads Nick and Hank to the resurrection of an old feud that's all too familiar for Nick and Monroe. With the news of a royal family member's demise, several key players start to make their move. Meanwhile despite his recent trauma, Nick finds himself healthier than normal and Monroe and Rosalee talk about moving their relationship forward.

When Nick and Hank investigate a drowning death with mysterious marks on the victim’s ankles, they happen upon a group of water-bound Wesen with a deadly postcoital cuddle. Meanwhile, Rosalee starts unpacking her things at Monroe’s, and Captain Renard makes a startling realization about the possible identities of the Royal Baby’s parents.

Nick and Hank are on the case as repeat instances of apparent vigilantism have whispers of an old Spanish legend making their way through a working-class Portland neighborhood. Elsewhere, Juliette learns the truth about Nick’s mother. Meanwhile, Adalind has a brief scare during her ultrasound.

Nick faces his toughest challenge yet when he and Hank investigate a case that combines religious phenomenon with the dark dealings of the Wesen Council. Meanwhile, Rosalee is torn when Nick's case challenges her Wesen loyalties. Elsewhere, Captain Renard leaves town to tend to some "family matters."

As a deadly crime spree begins to surface, a century-old urban legend takes shape in Portland's sewers and becomes Nick's latest case. In Europe, Adalind meets Prince Viktor, who’s come to bring those responsible for his cousin Eric’s demise to justice. Meanwhile, Captain Renard responds to the recent attempt on his life.

After a string of delinquent teens go missing, an old Wesen tale of an evil Santa who brings more than just a lump of coal may be the prime suspect. The investigation intensifies as Nick and Hank take things a little too far. Meanwhile, Monroe enlists Juliet to surprise Rosalee for their first Christmas together with unintended results. Elsewhere, Captain Renard’s tour of Europe brings him closer to tracking down Adalind.

Nick and Hank investigate a Wesen "healer" whose ability holds risks that far outweigh its rewards. Meanwhile, Juliette takes in a friend when domestic issues escalate and Hank makes a move on his physical therapist Zuri. Elsewhere, Captain Renard finally tracks down Adalind and has a stern warning for her.

Nick and Hank are called to the scene of a gang-related homicide. The case escalates as Zuri, Hank’s physical therapist, and her brother get caught up in the investigation. Meanwhile, Juliette seeks advice from Rosalee in dealing with the news that her friend is Wesen.

Nick and Hank are called to the gruesome murder of a veteran working in home security. During their investigation, they discover this might be one of several revenge killings regarding a horrifying cover-up involving members of the army and military contractors. On the domestic front, Monroe accompanies Rosalee during her long overdue reunion with her mother and sister. In Europe, Adalind sees hints of what she thinks might be her powers returning.

Nick and Hank investigate a cop killer who scalps his victims. Meanwhile, Juliette begins to communicate with Nick's mom via email and Adalind finds herself much closer to delivering her baby than she previously thought. Elsewhere, Monroe's parents decide to surprise him and Rosalee with an early arrival to Portland after learning some exciting news.

Juliette and Rosalee throw a big spa party at Juliette's house and are surprised when Madison shows up to demonstrate the products.

The party continues at Juliette's house and things began to get really warm.

As the party gets warmer, a Juliette and Rosalee trap a strange visitor in the kitchen and realize exactly what is going on.

After determining what is going on, Juliette and Rosalee put their plan to correct the situation into action with surprising results.

Monroe fights an impossible battle to convince his parents to embrace the life choices he’s made. Meanwhile, Nick turns to Juliette to help him figure out the Wesen aspect of his cop-killing scalper investigation. On the Royal Baby front, Captain Renard learns new information that forces him to contact Adalind in the interest of keeping her and the baby safe from Viktor.

A horrible new predator creeps into Portland with its sight set on a young expectant couple who are close friends of Sgt. Wu. Nick and Hank must figure out how to deal with Wu as the investigation escalates. Meanwhile, Adalind prepares for a special delivery while her enemies are hot on her trail.

Nick and Hank find themselves thrown into the middle of an ancient battle and things heat up when the Wesen Council decides to get involved. Monroe and Rosalee fill everyone in on early Wesen history. Meanwhile, Sgt. Wu is still reeling from the events he recently experienced. As things heat up in Europe, one of the Resistance’s most trusted allies gets compromised as he tries to protect Adalind.

A double homicide leads Nick and Hank to a traveling carnival where the performers are not what they seem. To get a better understanding of what's going on behind the scenes Monroe and Rosalee go undercover. On the wedding front, Monroe has a really important question for Nick. In Austria, an invaluable member of the Resistance makes the ultimate sacrifice to help Adalind.

The Resistance's plan to keep Adalind safe gets kicked into high gear when an unexpected ally arrives to ensure she and the baby make it out of Europe safely. In Portland, as Monroe and Rosalee prepare for their upcoming wedding, Nick and Juliette are reminded of their failed proposal.

Nick and his mom, Kelly Burkhardt, join forces to protect Adalind's baby. Meanwhile, Prince Viktor activates a deadly stateside asset to find Adalind and her child.

Nick and Hank investigate a dangerous female suspect leaving a trail of Wesen in her wake. Elsewhere, Adalind takes measures into her own hands, even if that means forging a dangerous alliance.

When Nick brings Trubel on a ride along with Hank, they end up investigating the murder of a young woman; Adalind is hopeful after making a discovery.

Nick and Hank learn the victims of the homicide they are investigating were from a special section of the Verrat; Renard grows suspicious of Adalind's behavior.

Rosalee and Monroe's big day arrives; a realization shakes Juliette and Nick's relationship to its core; Adalind's plan leads to a catastrophic event.

The team scramble to find a cure to get Nick's ability back.

The Gedächtnis Esser continues to steal memories and Captain Renard's mother visits him in the hospital to try to save his life. Meanwhile Wu confronts Nick about Trubel and Nick and Adalind share a psychic connection.

Nick's power loss aftermath showed that the changes are far more than anticipated, Elizabeth, Monroe and Rosalee look for the cure. Nick and Hank call on Trubel to help out on a case.

A rabbi raises a golem to protect his nephew, but he can't control it. Elizabeth successfully recreates Adalind's spell, but it still requires a key ingredient.

A woman claims a persistent talking wolf drove her to madness; Juliette and Nick weigh the potential costs of getting back his abilities, and the threats against Rosalee and Monroe get worse

With Monroe and Rosalie are dealing with a growing problem from Wesen purists, Nick and Juliette must decide if a normal life is really what they want.

Nick and Hank are called to investigate a bizarre string of home invasions that lead to an even stranger Wesen phenomena. Monroe has a very special Christmas surprise in store for Rosalee. Meanwhile, Truble comes to a life changing realization that will affect everyone.

A traveler manages to bring a blood‑sucking legend with him as he shows up in Portland. Nick and Hank investigate the gruesome trail of “El Chupacabra.”

The Wesenrein abduct Monroe and plan to destroy his marriage to Rosalee... permanently. Meanwhile, Nick and Hank show Wu the truth of the Wesen, and Juliette deals with a new face in her mirror.

After Monroe’s abduction by the Wesenrein, Nick gathers the whole team, including Wu, to track him down and return him to Rosalee. As the search intensifies, Juliette learns more about her new reality as a Hexenbiest.

Monroe and Rosalee are finally off on their honeymoon, but that doesn't mean trouble isn't stirring in Portland. Nick and Hank are called to a shocking homicide at an abandoned residence many Portland locals think is haunted, even the survivors swear a ghost committed the murder. Meanwhile, on the heels of Juliette’s startling revelation Captain Renard seeks the help of a mystical woman from his past.

Nick and Hank investigate a series of murders that lead back to the Wesen Council and a mysterious bounty hunter. Elsewhere, Juliette’s meeting with Henrietta brings about more disturbing news than she was expecting. Meanwhile, Adalind and Viktor make their way back to Portland.

When an arson case looks to have Wesen origins, Nick find himself reluctantly having to ask an old foe for help. Elsewhere, Viktor teaches Adalind the effectiveness of well-played diplomacy. Meanwhile, Juliette finds herself in a confrontation sooner than expected.

Nick and Hank investigate a murder victim with his foot cut off, and stumble onto a disturbing Wesen take on the "lucky rabbit’s foot." In an effort to help, Monroe and Rosalee go undercover. Meanwhile, the fallout from Adalind and Juliette’s showdown still has Nick reeling and sends him on a path that leads to Henrietta.

Nick and Hank are called to investigate a one night stand turned deadly when a man finds himself in the middle of a very bizarre love triangle. Captain Renard hopes Monroe and Rosalee can help him deal with recurring episodes of phantom bleeding. Meanwhile, Adalind makes a discovery that might turn the tables in her favor and Juliette makes a big decision that could change the course of her relationship with Nick.

A cyclist's homicide introduces Nick and Hank to a Wesen with a tragic fatal touch. Captain Renard and Adalind learn the Royals have stepped up their efforts to find their child, and another member of the Royal family is introduced. Meanwhile, Juliette ponders the idea of embracing what she's become as opposed to fighting it.

Nick and Hank are called to investigate a rare Wesen that leaves its victims frozen solid. Meanwhile, Juliette starts to feel that she is losing her humanity as she seeks to get revenge on Adalind. Elsewhere, Captain Renard continues to suffer from mysterious bleeding and visions while Monroe works toward coming to grips with the Wesenrein incident.

A homicide leads Nick and Hank onto the dark and mysterious path of a local Native American power quest. Meanwhile, Juliette's erratic behavior lands her on the wrong side of the law. At the spice shop, Rosalee and Monroeare on a mission and call on Captain Renard for help.

Nick and Hank investigate a homicide they discover is linked to a wesen rite of passage.

A string of homicides have the press asking Captain Renard if a Jack the Ripper copycat has arrived in Portland. While dealing with the investigation, Nick, Hank, Monroe and Wu deal with a situation they never expected. Meanwhile, Adalind and Rosalee must work together on a last ditch attempt to fix Juliette's condition. Elsewhere, Juliette decides to help her new ally even if it means hurting those around her.

While investigating a grisly murder, Nick and Hank get closer to uncovering the identity of the serial killer while Wu's life is put in grave danger. Having turned down Monroe and Rosalee's offer, Juliette solidifies a new alliance as she works to get her revenge. Elsewhere, Trubel makes a surprising return to Portland.

On the heels of a shocking discovery, Nick is hell bent on getting revenge and taking the fight to the Royals with help from Trubel. Meanwhile, Juliette's alliance continues to lead her down a dark path.

Nick must look inside himself and decide who he wants to be while also dealing with fathering a child with Adalind.

Nick makes changes to keep Adalind and his child safe, with the help of Monroe and Rosalee. Hank and his new partner investigate a murder at an investment group.

Rosalee disappears after some orphans decide she is the mother figure they always wanted and an encounter with a former colleague prompts Adalind to consider going back to work.

A wealthy mobster entices three young men to work for his daughter's hand in marriage, and a surprise visitor shakes things up as Nick and Adalind struggle to adjust to home life.

Nick and Hank are called to the scene when three Wesen go out on a hunt at a local dump and get more than they bargained for when two turn up dead after they encounter the mythical Rat King. Meanwhile, a very badly wounded Trubel is taken to the hospital and Nick finally meets Meisner.

Nick and Hank investigate a wave of coordinated Wesen gang vandalism that results in the death of a local business owner and the kidnapping of Monroe and Rosalee's friend. As they dig deeper, they learn that Portland wasn't the only city hit with a wave of violence. Meanwhile, Truble fills Nick and Adalind on what she has been up to. Elsewhere, Capt. Renard dips his toes into politics as he endorses a local candidate.

Nick and the gang are still reeling from the scope of the ambush and the surprise return of "Juliette", but not everything is as it seems. In light of the heightened Wesen violence, Monroe and Rosalee seek answers from the Wesen Council. Meanwhile, Trubel has some information for Nick that will help him get what he is looking for.

A local legend comes back to life as Nick and Hank investigate a mysterious sighting linked to a tourist's death at a local lake. Rosalee's past comes back to haunt her. Elsewhere, Capt. Renard continues to support a candidate for mayor. Meanwhile, Nick is shown the scope of the Wesen uprising as the secret government agency takes him into the heart of their Portland operations center.

A barbaric Wesen ritual is brought to the present and Nick, Hank and Wu are already five steps behind the serial killer. To aid in the investigation, Monroe goes undercover. Meanwhile, Hadrian's Wall's war against Black Claw intensifies as Eve uses her unique skills to interrogate a suspect.

Monroe gets a call from a relative in Germany that will bring Nick closer to his ancestors. Things get complicated when the nefarious group Black Claw is also after the same artifacts. Elsewhere, Capt. Renard helps a mayoral candidate get an edge on his opponent. Meanwhile, Trubel confronts Eve about Nick and Adalind.

Newly gained artifacts take Nick and Monroe closer to the source of a long-gestating mystery. Elsewhere, Black Claw makes a deadly move that will send Portland into disarray.

Nick and Monroe find a treasure in Germany that has been hidden for centuries. Back in Portland, Capt. Renard joins Hank and Wu to track down a deadly assassin who has thrown Portland into havoc. Little do they know that Eve is on a hunt of her own for the same man. Meanwhile, someone from Rosalee's past tracks her down.

A local maskmaker is targeting Wesen to create Luchador masks that bestows great power to its wearer. As Nick, Hank, Monroe and Rosalee work to stop the killings, Capt. Renard considers an offer that will bring him closer to claiming his destiny. Meanwhile, Eve's further investigation of a recent incident raises new questions.

Following a brutal attack in the woods, Nick and Hank stumble upon a terrifying Wesen disease that may be the inspiration for the modern-day werewolf myth. Meanwhile, Adalind is offered an uneasy alliance that may help her get back what she wants most. Elsewhere, Eve's investigation uncovers a surprising revelation.

When Nick and Hank come across a beautiful young woman who seems to have aged 70 years overnight and died, they suspect Wesen involvement. The investigation leads to a local doctor and Rosalee is enlisted to help find the truth. Meanwhile, Eve takes bold steps to learn more about Capt. Renard's nefarious dealings.

An evangelical preacher has a tent revival unlike any other when he uses his Wesen identity to gain more believers. Nick and Hank are called to the scene as things escalate when a group of "true believers" are hell bent on saving the preacher and his flock by any means necessary. Meanwhile, Capt. Renard takes further steps to gain power in local government. Elsewhere, Eve uses Adalind's ol' hat trick to gain more access to Black Claw.

When the severed head of a young man is found under a bridge, Nick and Hank find themselves on the case of Japanese Wesen acting on an ancient tradition of revenge. Elsewhere, Adalind decides to go back to work at her old law firm and has her first face-to-face with Eve.

When a man is found dead with all of the bones in his body seemingly liquefied and removed, Nick and Hank find themselves in the middle of a gruesome family arrangement. Meanwhile, Wu deals with a crisis of his own and Hank reunites with his old flame, Zuri (Sharon Leal).

Suffering from the bite he sustained, Sargeant Wu becomes entangled in a surprising altercation that may land him in hot water. After meeting the mysterious Bonaparte, Adalind is faced with a difficult decision that could change her and Nick's lives forever. Meanwhile, Hank gets even closer to Zuri and their relationship begins to take shape. Back at HW, Eve senses that a new force may jeopardize the entire operation.

Nick leans on Monroe and Rosalee as he worries that he may lose everything as he continues to battle Black Claw. Renard ramps up his campaign as election time nears. Elsewhere, Adalind is faced with a very difficult decision in order to protect her children. Meanwhile, Hank's relationship with Zuri takes an unexpected turn and Wu tries to gain control of his new reality.

Black Claw makes a strategic move against Hank that shocks everyone and sends Nick on a war path. Hadrian's Wall ramps up their investigation as they seek out a mysterious man named Bonaparte. Meanwhile, Adalind and Capt. Renard must learn to deal with their new and very unpredictable reality with Diana.

Following the massacre in Nick’s loft, Capt. Renard is hell bent on eliminating him once and for all. Hank and Wu head back to the precinct to keep an eye on the Captain and help give the gang the upper hand. Meanwhile, Monroe and Rosalee grapple with staying in Portland now that their family will be expanding. Elsewhere, Eve suffers the side effects of the mysterious stick’s healing power.

Hank and Wu find a solution to stop Renard while Nick is still on the run. Adalind receives a phone call that throws her into the middle of everything. Back at the spice shop, Monroe and Rosalee's adventure in babysitting takes an interesting turn when Diana demonstrates her power. Meanwhile, Eve and Trubel work to solve the mystery of the cloth found with the healing stick.

In order to stop the rise of Capt. Renard, Nick devises a plan that will take him out of his element. Adalind and Monroe do everything in their power to keep the plan on track. Meanwhile, Eve and Rosalee race against time to get the spell ready before it is too late.

Nick, Hank and Wu investigate a terrifying new Wesen who terrorizes a young family and has a surprising motive. Capt. Renard is reeling after an unexpected guest appears. Meanwhile, Diana has some interesting news for Monroe and Rosalee. Elsewhere, Eve returns to the catacombs beneath Nick’s loft to search for answers to her bizarre visions and side effects from being healed by the mysterious stick.

Nick and Hank join Wu to investigate a bizarre murder in a local park. Elsewhere, Capt. Renard continues to deal with a ghost from his past. Meanwhile, Monroe and Rosalee visit the doctor to see if Diana's premonition is true. Back at the loft, Adalind finds a very weak Eve in the tunnels and mysterious drawings scrawled on the walls.

Nick, Hank and Wu investigate a local hotel after a grisly murder leads to one of its guests who claims to be haunted by a frightening creature in the night. At the Spice Shop, Monroe, Rosalee and Eve continue to research the origins of the symbols on the cloth and may be getting closer to unlocking its mystery. Meanwhile, Capt. Renard continues to be haunted by his past transgressions.

Rosalee surprises Monroe with a getaway for his birthday and invites most of the gang to join them. Things take a shocking turn when a hotel employee targets Nick in an effort to avenge his father. Meanwhile, Eve gets a visit from a dark force that she has seen before. Elsewhere, Capt. Renard spends the weekend with Diana when a former ally decides to get even.

Deadly attacks on a team of scientist lead Nick, Hank and Wu on a investigation unlike any they have had before. Meanwhile, as the research continues into the origins of the cloth, Monroe and Rosalee learn that Eve is still feeling the after effects of the death grip. Elsewhere, Capt. Renard reaches out to an old friend to get answers to the origins of the symbols drawn by Diana.

Nick, Hank and Wu are called to the scene of the crime where a man claims his friend was consumed by a tree-like figure. Meanwhile, after the gang learns of Eve's disturbing mirror encounter, everyone takes extra precautions. Elsewhere, Capt. Renard searches for answers to what Diana was drawing.

After a series of brutal and deadly attacks, Nick and Hank find an unlikely lead in a local nursing home. Meanwhile, Eve goes to Adalind to get answers that only a Hexenbiest can provide. Elsewhere, Capt. Renard confronts Nick about the mysterious symbols and tries to strike a deal.

Eve goes on a mission to take on the mysterious force she saw in the mirror and finds herself in unfamiliar territory. When the gang discovers what she has done, Nick finds a way to join her. Meanwhile, an uneasy alliance is established when Capt. Renard is brought in to help and discovers this all may be connected to the person he cares for the most, Diana.

The prophecy that was uncovered comes to pass when a dark force arrives in Portland with its eyes set on Diana. In an effort to protect her, Nick, along with Capt. Renard and Adalind, returns to the scene of his first investigation as a Grimm. Back at the Spice Shop, Monroe, Eve and Rosalee make a discovery that uncovers the origins of the mysterious stick. Meanwhile, Hank and Wu are called to a crime scene that is connected to the gang's greatest threat.

Nick faces off against his greatest foe yet as it seems no weapon can defeat him. At the Spice Shop, Monroe, Rosalee and Eve search for answers and stumble upon a rare potion that may help the fight. Elsewhere, Capt. Renard and Adalind try to keep Diana and baby Kelly safe as the threat has its eyes set on the children.