U premijeri sezone, Barry Allen odlučio je sam štititi grad, sve do napada metačovjeka Atoma Smashera.

Jay Garrick, tajnoviti čovjek sa Zemlje-2, pojavljuje se u STAR laboratorijima sa zlokobnim upozorenjem o zlom ljubitelju brzine Zoomu koji želi uništiti Flasha.

Barry i tim saznaju da je Kapetan Cold otet pa sklapaju krhki savez s njegovom sestrom Lisom.

Barry i tim traže novog Firestorma za dr. Steina i upoznaju Jeffersona „Jaxa Jacksona, ali Caitlin je sumnjičava.

Dr. Light prolazi kroz portal pa je Barry odlazi uloviti. Ona tijekom borbe osljepljuje Flasha i otkriva mu šokantne vijesti o Zoomu.

Barry smišlja opasan plan kako bi porazio Zooma. Iako Caitlin staje na Jayevu stranu i misli da je plan preopasan, Iris ga podržava i dovodi neočekivana saveznika.

Gorila Grodd vraća se u Central City i otima Caitlin pa Barry i tim žure pronaći je prije nego što bude prekasno. Patty sumnja da joj Barry nešto krije.

Vandal Savage namjerio se na Kendru Saunders pa je Barry mora skriti u Star City s Oliverom u prvom dijelu nevjerojatnog spajanja dviju serija.

Zlikovci James Jesse, Kapetan Cold i Weather Wizard divljaju u Central Cityju za Božić.

Dok Joe i Iris upoznaju Wallyja, Barry razmišlja o tome da kaže Patty da je on Flash. Tim lovi metačovjeka koji može usporiti vrijeme.

Cisco je osjetio vibracije Eobarda Thawnea, ali Barry i tim mu ne vjeruju. Nakon napada u Laboratorijima Mercury, Christina McGee potvrđuje da se Suprotni Flash vratio.

Barry se udružuje s Wellsom kako bi otkrio kako zatvoriti pukotine. Iris je zabrinuta za Wallyja pa povlači hrabri potez koji je dovodi u opasnost.

Barry, Wells i Cisco putuju na Zemlju 2 kako bi spasili Wellsovu kćer Jesse. Barry je zaprepašten kad susretne Killer Frost i Deathstorma.

Tim traži Zoomov brlog na Zemlji 2 i nailazi na neočekivanu pomoć dok Caitlin na Zemlji 1 pokušava usavršiti Velocity 9 kako bi Jay mogao zaustaviti Geomancera.

King Shark bježi iz zatvora A.R.G.U.S.-a pa Lyla i Diggle putuju u Central City kako bi upozorili Flasha. King Shark pojavljuje se u kući Westovih i napada Joea, Iris, Wallyja i Barryja.

Trajectory dolazi u grad s namjerom da stvori potpuni kaos, no ljudi misle da je njezine nepodopštine izveo Flash. Barry mora brzo otkriti tko uzrokuje štetu i što pokreće njezinu ludu želju za brzinom i uništenjem.

Nakon šokantnog otkrića o identitetu Zooma, Barry je odlučan vratiti se na Zemlju 2 i zauvijek ga zaustaviti. Očajnički se želi ubrzati pa putuje kroz vrijeme i maskira se u starog sebe kako bi ga Eobard Thawne naučio brže trčati.

Barry misli da je, opremljen tahionskom napravom, dovoljno brz da zaustavi Zooma i želi otvoriti pukotine kako bi ga ulovio. Harry mu otkriva da Cisco može otvoriti pukotine. U međuvremenu otkriva se bolna priča Huntera Zolomona na Zemlji 2.

Supersnažni metačovjek Griffin Grey zamijenio je Harryja za Harrisona Wellsa sa Zemlje 1 i oteo ga kako bi ga Wells izliječio. Barry shvaća da bi mu još jedan briljantni Wells mogao pomoći pronaći Griffina pa traži Jessenu pomoć.

Zoom se vraća na Zemlju 1 kako bi zauzeo Central City. Barry i Wells smišljaju kako ga zauvijek zaustaviti. Barry traži savjet obaju očeva, no oni se ne slažu. Cisco otkriva Rupturea, dvojnika njegova brata Dantea, koji se želi osvetiti za smrt Reverba.

Iris svojevoljno želi biti mamac u planu da zarobe Girdera u laboratorijima S.T.A.R. Barry se ne uspijeva vratiti svojem starom životu.

Zoom oslobađa vojsku metaljudi sa Zemlje 2. Vodi ih dvojnica Black Canary, Black Siren. Joe je zabrinut dok Wally pomaže Flashu.

Otkriven je Zoomov pravi plan a Flash i ekipa učinit će sve da ga zaustave.

U premijeri sezone Barry Allen živi život koji je oduvijek htio, ali život u alternativnom svemiru Flashpoint ima ozbiljne posljedice.

Barry shvaća da je učinak Flashpointa puno veći nego što je mislio. Upoznaje novog suradnika Juliana i čudno mu je što ga on odmah prezire.

Wells se sa Zemlje-2 vraća u Central City s Jesse i povjeri se Barryju i Caitlin da njezinu moć brzog kretanja koristi kako bi spasili stanovnike na njegovoj Zemlji.

Kada novi metačovjek, Mirror Master i njegov stari partner Top pokušaju poravnati račune s Leonardom Snartom, Barry dozvoli Jesse da im se pridruži.

Caitlin odlazi u posjet majci kako bi joj pomogla da shvati svoje sve jače moći metačovjeka. Barry pokušava uvjeriti Juliana da prihvati njegovu pomoć u istrazi napada novog metačovjeka na Central City.

Wally ima vizije da je on Kid Flash, pa mu Barry mora reći što se dogodilo u Flashpointu kako bi Wally ostao na sigurnom.

Ekipa je šokirana kada Caitlyn mora pokazati svoju moć Ubojitog mraza. No ona nije jedina koja skriva tajnu.

Dominatori vanzemaljski neprijatelji žele izvršiti invaziju ali Flash i ekipa im kvare planove.

Barry odlazi na Zemlju-3 po savjet Jaya Garricka kako zaustaviti Savitara. Wally kaže da je Barry vježbao s H. R.-om. Otvaraju se stare rane jer Cisco dočekuje Božić bez Dantea.

Barry i ekipa Flash žele promijeniti budućnost kako bi spasili Iris od neizbježne smrti. Jedini je način da se vrate u budućnost. Wally West obući će odijelo Kid Flasha i pridružiti se Barryju. Hoće li dečki uspjeti?

Barry Allen i Cisco Ramon zajedno pokušavaju spasiti Harrisona Wellsa od međudimenzionalnih lovca na ucijenjene glave koji ga žele ubiti. Kako bi ga spasili čeka ih borba na život i smrt.

Kriminalac metačovjek kod ljudi uzrokuje ubrzano raspadanje.

Barry i ekipa odlaze na Zemlju-2 kao bi spasili Harryja iz Gorilla Cityja, gdje ih zarobljavaju i odvode Groddu, koji kaže da treba njihovu pomoć kako bi zaustavio Solovara.

Grodd i njegova vojska borbe prenose na Zemlju-1 i ekipa mora naći način da ga zaustavi.

Trenirajući s Barryjem, Wally počinje imati vizije Savitara, ali to skriva od ostatka ekipe. Opasna tajna mogla bi ugroziti sreću Barryja i Iris.

Očajan u namjeri da zaustavi Savitara i spasi prijatelje, Barry traži pomoć. H. R. daje Jesse savjet.

Gospodar Glazbe šalje Supergirl i Flasha u svijet u kojem je život mjuzikl i jedini način da pobjegnu jest da pjevaju i plešu.

Flash se bori protiv nasilnika iz 64. stoljeća po imenu Abra Kadabra, koji u zamjenu za svoje oslobađanje nudi da će mu otkriti Savitarov identitet.

Barry odlazi u budućnost kako bi otkrio Savitarov identitet i spasio Iris.

Beri odlazi u budućnost i saznaje da sudbina njegovih prijatelja nije nimalo vesela.Trjesi Brend je ime koje je Beri izvukao na površinu i želi da je pronađe u prošlosti.Kejtlin je postala Killer Frost a Cisko pokušava da je vrati nazad.

Beri izgubi pamćenje nakon pokušaja Ciska i Juliana da poraze Savitara.H.R. vrši pritisak na Trejsi da završi uređaj koji Savitaru oduzima brzinu.Kejtlin a sada Killer Frost dolazi sa predlogom da Beriju vrate pamćenje.

Bari odlazi u prošlost po Snarta i zajedno planiraju krađu vanzemaljskog uređaja koji će napajati bazuku koju je izmislila Trejsi.Imaju 24 sata ili će Ajris biti ubijena.

Nakon nenadanog preokreta sa Ajris i H.R. , ekipa razmišlja kako konačno pobjediti Savitara.Sila brzine sprema nova iznenađenja za Barija i društvo.

With Barry in the speed force, Iris, Kid Flash, Joe and Vibe have taken over protecting Central City. However, when a powerful armored villain threatens to level the city if The Flash doesn't appear, Cisco makes a risky decision to break Barry out of the speed force. However, the Barry that comes out isn't the same Barry that went in.

Barry has his hands full when he takes on a dangerous meta who can control technology, while also confronting an obstacle in his personal life: the ramifications of abandoning Iris for six months to balance the Speed Force. Meanwhile, Gypsy breaches in for a hot date with Cisco, but she gets annoyed when his work keeps them apart.

Barry and the team are hit by a string of bad luck and realize it is the handiwork of a new meta, Becky nicknamed Hazard, who has the ability to give others bad luck, while cashing in the benefits for herself. Meanwhile, Harry Wells returns to Earth-1 to give Wally a message from Jesse.

Cisco is shocked when Gypsy's father, Breacher, shows up on Earth-1. Breacher takes an immediate disliking to Cisco and decides to hunt him. Meanwhile, Barry runs into his old nemesis, Ralph Dibny.

Having received an ominous threat from her old boss, Amunet, Caitlin fears that her past time as Killer Frost may be back to haunt her. Felicity comes to Central City to help the girls celebrate Iris's bachelorette party, while Cisco, Joe and the guys take Barry out for a night on the town.

When collectors of Native American artifacts are attacked by a meta named Mina Chayton who can bring inanimate objects to life, Barry turns to a surprising ally for help. Determined to crack the identity of The Thinker, Harry enlists Cisco's help to summon the ultimate think tank: "The Council of Wells'," a roundtable of the brightest Harrison Wells' from various Earths.

Barry comes face to face with DeVoe. Devoe's past is revealed through flashbacks. Meanwhile, Iris puts the final touches on the wedding, which is a week away.

Barry and Iris's wedding brings the gang together, but things go awry when villains from Earth-X attack the ceremony. All of the superheroes band together with help from their super friends like Citizen Cold, The Ray, Felicity Smoak, Iris West and Alex Danvers to take on their most formidable villains yet. Earth's mightiest heroes - Green Arrow, Supergirl, The Flash and White Canary - lead their teams into battle to save the world.

The crossover starts on Supergirl S03E08 Crisis on Earth X (I) and Arrow S06E08 Crisis on Earth X (II). It continues on DC's Legends of Tomorrow S03E08 Crisis on Earth X (IV).

Amunet kidnaps Caitlin and puts meta-dampener handcuffs on her to keep her from turning into Killer Frost. Amunet tells Caitlin she needs her to perform a tricky medical task and if Caitlin fails, Amunet will kill her. Meanwhile, The Thinker traps The Flash in a speedster-proof prison. With the clock ticking, The Team doesn't have the time or resources to track both Caitlin and Barry so Iris is forced to choose who to save.

As Barry’s trial for the murder of Clifford DeVoe begins, Iris and Joe must decide how far they are willing to go to keep Barry out of prison.

When a familiar villain returns to terrorize Central City, Ralph must rise up to defend the innocent while Barry is detained by his trial. Meanwhile, Barry searches for the strength to keep his optimism alive in the face of his new circumstances.

A meta who can shrink anything he touches battles Team Flash. Cisco and Ralph get caught in his crossfire and are shrunk to miniature versions of themselves. Cecile realizes her pregnancy has caused her to have temporary powers and discovers she can hear other people’s thoughts, which unnerves Joe. Meanwhile, Barry meets someone with a mysterious connection to Henry Allen.

After hearing that Amunet has struck a deal to buy all of the metahumans in Iron Heights, Barry must decide if he should expose his powers in order to save his cellmates. After a visit from an old friend, Ralph is reminded of his shady past and wonders if he’s really a changed man.

Barry meets a powerful woman whose abilities could help him in his battle with DeVoe. Meanwhile, after learning that DeVoe is targeting everyone who was on the bus, Ralph decides he doesn't want to be a hero anymore, his only concern is staying alive. Harry offers to help Joe.

When a nuclear bomb detonates in downtown Central City, Barry, Jesse Quick and Jay Garrick slow down time by entering Flashtime. As everyone in the city is frozen, the three speedsters push themselves to the breaking point to save the city and everyone in it.

Team Flash confront a new bus meta, Matthew aka Melting Pot. He has the ability to swap people’s DNA, so during a battle with Team Flash, he transfers Barry’s super speed to Iris. Now, with a new threat unleashed on Central City, Barry must act as the team leader while Iris takes on the mantle of superhero speedster in order to defeat their new foe.

Barry and Ralph take different approaches to finding the remaining bus metas before DeVoe gets to them. However, Ralph's cavalier attitude frustrates Barry and the two clash over what it means to be a hero. Meanwhile, Breacher returns to ask Cisco for a favor.

When Barry and Team Flash find a way to enter The Thinker’s lair, Ralph considers crossing a dangerous line to defeat DeVoe. Meanwhile, Joe is concerned by Harry’s recent behavior.

When Barry needs help transporting a dangerous meta, he calls on a new friend for help - Leo Snart AKA Citizen Cold. Meanwhile, Cisco becomes suspicious of Harry.

Barry and Team Flash team up with Gypsy to try to thwart Thinker's plan. Meanwhile, Cisco and Gypsy have a heart to heart talk about their relationship.

With DeVoe's Enlightenment device nearly complete, in order to disable it The Flash and his team must put their faith in an unlikely ally – Amunet Black. Meanwhile, Harry hits an all-time low when the "Council of Wells" kicks him out but then Cisco introduces him to the "Council of Harrisons."

When DeVoe assaults an A.R.G.U.S. facility to complete his Enlightenment Machine, Barry realizes the only way he can stop him is if he allows Cisco and Caitlin to accompany him into the facility. Still shaken by Ralph’s death, Barry isn’t sure he wants to risk any more of his friends’ lives and considers taking on DeVoe solo.

Team Flash gets help from a surprising ally in their battle against DeVoe.

After an unexpected guest from the future, Nora West-Allen, appears at their home, Barry and Iris must figure out how to get her back to the future without disrupting the timeline…even more than she already has. Team Flash must work together to send Nora back, while simultaneously fighting off another villainous meta.

As Barry helps his daughter, Nora, become a better speedster, he and Team Flash also track down a meta stealing high-tech weapons, only to cross paths with a new foe named Cicada, who is hunting the very same meta with nefarious intent.

After Cicada's attack on The Flash, the team realizes they need to think outside the box to stop this dangerous new foe. Desperate to help her parents, Nora comes up with a plan that ultimately puts a member of Team Flash in danger. Meanwhile, Caitlin delves into her past.

Barry and Iris face the ultimate parenting test when Team Flash battles Spin, a savvy millennial armed with meta tech, and a dangerous agenda for their daughter, Nora. Ralph is feeling defeated until an unlikely source issues a challenge to help boost his confidence.

Nora lets something slip about the future that devastates Iris. In an attempt to distract his wife, Barry asks Iris to team up to stop a new meta, Rag Doll. Meanwhile, Caitlin learns something about her father.

Caitlin, Barry and Cisco learn something new about Caitlin’s father. Meanwhile, Iris and Sherloque follow a clue about Cicada.

While Nora grapples with unresolved anger over her father’s disappearance in the future, Barry and Team Flash must stop a powerful new meta, Weather Witch, from killing her own father, Weather Wizard.

Barry and Team Flash come up with a plan to stop Cicada. However, the plan calls for Barry and Nora to travel back in time to gather some key necessities. However, Barry hesitates, concerned about his daughter seeing certain parts of his life. Meanwhile, Sherloque takes his concerns about Nora to Iris, and Caitlin turns up a key asset in the fight against Cicada.

When Barry Allen and Oliver Queen wake up one morning and realize they have swapped bodies with each other, the two set off to find out what disturbed the timeline to cause such a shift. However, things quickly go from bad to worse when they present their case to Team Flash and the gang doesn’t believe them. Barry and Oliver realize they need Supergirl’s help and travel to Smallville on Earth-38 where they end up meeting Kara’s cousin, Clark Kent, and intrepid reporter, Lois Lane.

The crossover continues on Arrow S07E09 Elseworlds (II) and Supergirl S04E09 Elseworlds (III).

While Nora grapples with the revelation that Thawne killed her grandmother, Team Flash must stop the formidable team-up of a newly sprung from jail Weather Witch and Silver Ghost, a new meta-tech villain who can control engines and motorized technology. Meanwhile, Caitlin and Cisco discuss creating a meta-human cure.

During a battle with Cicada, Nora is severely injured. Due to Cicada's dampening powers, Nora's speed healing isn't working, leaving Barry and Iris scared for their daughter's future. Upset about his injured child, The Flash is filled with rage and confronts Cicada in a brutal battle. Meanwhile, Killer Frost keeps interfering with Caitlin's work on the cure.

When Sherloque wants to use a memory machine on Barry and Nora to help gain access to Grace's memories, Nora panics, fearing her parents will find out the secrets she's been keeping from them. Nora secretly decides to use the machine on her own which ends in disaster after she gets trapped inside Grace's mind. Barry and Iris go in after their daughter and Iris is brokenhearted by what she finds. Meanwhile, Ralph tricks Cisco into going out for a night out on the town.

Barry and Ralph must go undercover as criminals in an illegal black market to purchase a device that could help them stop Cicada. Once inside, Barry and Ralph find their morality tested as they slip deeper into the criminal world, eventually having to choose between committing a crime, or losing the means to defeat one of their greatest foes. Meanwhile, Iris investigates a lead on Cicada's whereabouts and ends up in a dangerous situation.

After Iris lands in serious danger, Nora races to save her mother. Barry puts the finishing touches on the metahuman cure, leaving Cisco with a rare night off so he decides to take Kamilla on a date.

When Gorilla Grodd attacks Central City, Barry and Team Flash find themselves teaming up with an unexpected ally to defeat – King Shark. However, when they hit a snag, they bring in Dr. Tanya Lamden to try to reach the man behind the shark, Shay Lamden.

With the meta-human cure ready to use, Barry and Team Flash must figure out a way to subdue Cicada long enough to take it. Killer Frost steps in to help with the plan. Meanwhile, Joe eases back into work, and Nora isn’t happy about the way her dad plans to stop Cicada.

Team Flash finds out that a suburban mom named Vickie Bolen is in danger and they race to save her. Upon meeting her, they discover she’s a meta-human who is hiding her abilities from her family. Barry encourages Vickie to share her secret with her family, which makes Nora realize she needs to come clean with her parents about Thawne.

After discovering that Nora is working with Thawne, Barry and Iris disagree about how to handle their daughter in the wake of this shocking news. Team Flash isn't sure they can trust Nora, so they go through her journal to find out exactly how she came to work alongside their greatest nemesis.

When Icicle returns to enact the next phase of his devious plan, Caitlin and her mother, Dr. Carla Tannhauser, must resolve their long-combative relationship to defeat the icy monster. After Barry makes a big decision about their family without consulting her, Iris decides to take matters into her own hands.

Barry continues to struggle with how he feels about Nora's betrayal. Brie Larvan, Joss Jackam and Peter Merkel return to Central City. Meanwhile, Cisco makes a bold decision.

Team Flash is on high alert after Cicada II threatens to unleash a dangerous virus that would put all meta-humans at risk.

Barry faces off with his oldest, and most formidable nemesis, Reverse Flash.