The team is targeted by The Pilgrim, a deadly assassin who wants to erase the Legends from the timeline by killing their younger, non-superhero selves. As a protective countermeasure, Rip decides Sara, Snart, Rory, Professor Stein and Jax need to kidnap their past selves first before The Pilgrim gets to them. Coming face-to-face with the younger versions of themselves proves to be both a physical and emotional challenge for certain members of the team who would rather forget their past. Rip tells them he has a refuge for their precious cargo – an orphanage that raises future Time Masters and where he himself grew up.

The Legends are still reeling from the news that their time travel-nemesis is a speedster when they are alerted to an Aberration in the Old West. When the Legends arrive they find their old friend Jonah Hex in trouble with his arch-nemesis, Quentin Turnbull. The team soon discovers that they need to stop Turnbull and his gang from conquering the West and branding it his own lawless territory. To Hex’s surprise, Sara is in charge and dispatches the team. Rory is ecstatic to be in the Wild West, but Sara makes Amaya work with him to keep him on task, which is easier said than done. Meanwhile, Nate, Ray and Jax try to infiltrate Turnball’s gang, but find themselves in a shootout leaving Nate’s confidence shaken.

When The Legends find a new Time Aberration they learn they must travel to the winter of 1776 to protect George Washington and the American Revolutionary War. Unfortunately, things don’t go as planned, forcing Sara to send out Nate and Amaya to help. Meanwhile, Jax and Stein who are busy protecting the incapacitated Waverider from their new enemy, are forced to step into roles that they don’t think they are prepared for.

The Legends must devise a plan to retrieve the last remaining fragments of the Spear of Destiny from the Legion of Doom. They find themselves in France at the height of World War I faced with the knowledge that they must destroy the mystical object. They enlist the help of a soldier by the name of John Ronald Reuel Tolkien and find that the Spear is leading them into the heart of the war. Meanwhile, the team must all resist the temptation of the Spear, and the return of a former teammate.

The Legends learn that Ray Palmer will die because they broke time, causing them to race back to 1988 to try and save his life. When they arrive, they are surprised to learn that young Ray Palmer has befriended a time-displaced baby Dominator putting him in harm's way with the government and the Dominator's mother. New to the ship and missions, Zari must find her place and learn to trust the team. Meanwhile, Stein begins working on a secret project on the ship which makes Rory and Jax suspicious.

After Sara's encounter with Mallus, the Legends are paid a visit by John Constantine, a demonologist detective. The Legends agree to accompany him to a present-day psychiatric hospital and they are surprised to discover who Constantine is trying to help. During the exorcism, Sara, Leo and Constantine go missing, leaving Ray and Zari to try to take care of Constantine's client. Meanwhile, Amaya and Nate once again come face to face with Kuasa.

When the Legends learn that a mysterious tragedy destroyed Memphis in 1954, thus eradicating the birthplace of rock and roll, they embark on their most important mission - to save music. Nate is excited to show Amaya why music is important to him and he is surprised it leads to a rock legend as well as the sixth and final totem, the Death Totem. Meanwhile, Zari helps their newest member try to adjust to the team.

When the magical Time Seismograph goes off, the team finds themselves headed to the Salem witch trials. Sara notices that Zari is taking this case personally when she promises to save a mom, who is being accused of being a witch. However, the team quickly learns that there is a magical creature in the town creating problems they hadn’t been expecting. Meanwhile, Nate and Ava work together to try to keep their Time Bureau funding by proving to them that magic exists.

When Hank Heywood confronts Ava about the spending habits of the Legends, Nate steps in to try and smooth things over by inviting Hank on to the Waverider. The Legends then show Hank what they do by visiting 1920s Paris, trying to capture the newest Fugitive. Meanwhile, Mona is trying to make a good impression with Ava, but her over eagerness gets her and Ava stuck in a cell instead.

When Hank commandeers the Waverider in 1973, the Legends find themselves on the run in an RV after kidnapping the President who is only able to tell the truth. With the help of Constantine, they discover the reason that none of them can lie making for an uncomfortable family road trip. Meanwhile, Nate and Zari, with the help of Nora and Gary, work together to find out what Hank is really up to.

With Constantine missing, the Legends struggle to find a way to track him. When Sara hesitates to make a tough call, Rory steps up creating a wedge in the team. Meanwhile, Ava gives Gary the responsibility of handling the Bureau performance reviews for all the Agents.

When the Legends discover a new Encore, Sara, Rory and Ava end up crashing a high school reunion to attempt to stop a serial killer from finishing unfinished business. The Legends devise a plan to send Nate, Ray, Nora, Behrad and their hostage Zari, back in time to try and intervene in order to try to save everyone including them. Meanwhile, Constantine is annoyed that Charlie has been squatting in his old home, but it might be the blessing in disguise they were not looking for.

The Legends continue their hunt for pieces of the Loom of Fate and find themselves face to face with William Shakespeare. Ray, Nate, Rory, Constantine, Charlie and Behrad stay a little longer on the mission making things worse after lying to Sara. Meanwhile, Ray and Nora make another big life decision that leaves the team surprised and best buds, Nate and Ray, on the outs.

The Legends find themselves going back to college and form a sorority in order to try to retrieve an ancient artifact called the Chalice of Dionyus that will help Charlie operate the Loom of Fate. Proud to be back at his college, Nate falls under Dion’s spell, letting him know of Sara, Astra, Ava and Charlie’s plan to get the cup. Meanwhile, on a father-daughter weekend, Rory takes Lita on a college tour, but Rory bails on Lita for an unexpected reason.

The Legends find themselves tracking an Alien in 1950s San Bernadino and having to figure out what is making the town go on a feeding frenzy. Meanwhile, after crash landing, Sara tries to figure out a plan and runs into none other than Amelia Earhart.

With everyone finally back together, the Legends find themselves looking to Nate to keep everything calm while in the old West on a mission to find an alien. After trying to keep things normal, Sara reveals her secret to Ava and the team, leaving them all shocked. Constantine looks to Gary who might have the answer to his problem. Spooner and Astra are forced to work together despite their clashing personalities which ultimately helps push them to hone their powers.

With Astra, Spooner and a now-human Gideon trying to save the Legends, Gideon becomes overwhelmed by her new human choices sending her into a catatonic state. Astra and Spooner combine their powers to enter Gideon's mindscape and discover that a virus is trying to erase all of Gideon's memories. Acting fast, they devise a plan to defeat the virus before it's too late. Meanwhile, the Legends are about to go up against a powerful new foe.

Everyone's favorite fuzzy toy-turned furry god will once again be a hero as he tries to save Christmas. When Sprinkles, an efficiency-obsessed elf, decides that Christmas would run better without Santa Claus, Beebo and his friends travel to the North Pole to help discover what truly makes Christmas meaningful.

With the Legends tired of being chased by an evil A.I. and her robo-soliders, Sara decides to create an aberration that will allow the team to take back the Evil Waverider. However, they find themselves in a bar for time-travelers and quickly learn that this "fixed point" is popular with time-travelers, leaving Sara questioning her odds at winning. With Behrad and Astra growing closer, Zari and Spooner are forced to awkwardly interact with each other as the rest of the Legends are paired up on the mission. Meanwhile, Ava hears Gwyn's plan to save his boyfriend, and is forced to remind him of the consequences in he succeeds.