Worlds lived, worlds died. Nothing will ever be the same.
Sara, Ray and Mick are shocked to discover that the Legends have become famous. It seems that everyone except Sara is loving the spotlight, so much so that they invite a documentary crew on board the Waverider to film them as they investigate a strange new blip in the Timeline. The Legends discover that their new problem is none other than Rasputin, who happens to be straight out of hell, and it might be tougher than they thought. Meanwhile, Constantine thinks he knows the reason behind these new blips and informs the team that it won't be easy to defeat.
When a new blip lands the Legends in 1947 Los Angeles, it puts them on the trail of Benjamin "Bugsy" Siegel who seems to take pleasure in fraternizing with Hollywood Elite. Sara, Ray and Constantine devise a plan to capture him while Ava and Rory sit on the sidelines for the time being. They soon realize that they need to worry less about Bugsy and more about his girlfriend. Ava is struggling with being on the sidelines with Rory. Meanwhile, Nate accompanies Behrad to his dad's birthday, where Nate meets Behrad's sister, Zari, who seems familiar to him.
Sara, Rory and Ava crash a high school reunion to attempt to stop a serial hugger from finishing unfinished business; Constantine is annoyed that Charlie has been squatting in his old home.
When Sara is called away on business, she leaves Ava in charge; with Zari still on the ship, Behrad convinces the team to bring her along on a mission which they all hope isn't a mistake; Constantine finally confronts someone from his past.
While Sara is still away from the Waverider, the Legends use Ava's new invention, the Prognosticator to find a new Encore and defeat Genghis Khan in 1990s Hong Kong. Constantine's life is in danger and Ray, Nora and Gary all try to help him. Meanwhile, Behrad has been confused about Charlie's recent behaviour, but they all learn what Charlie is running from.
Ray plans a date night with Nora, but all goes awry when an Encore shows up. Ava learns what Sara was really doing while she was away and confronts her. Charlie and Constantine make a deal to work together. Rory is upset by negative book comments.
The Legends continue their hunt for pieces for the Loom of Fate and find themselves face to face with William Shakespeare; Ray and Nora make another big life decision that leaves the team surprised.
Sara, Constantine, and Charlie find themselves in British Columbia searching for another piece of the Loom, but they run into a problem they couldn't have foreseen. Zari has been having trouble feeling like herself, so she goes on meditative journey at the suggestion of Behrad. Ava volunteers to try and help Rory with a personal problem.
With Sara recuperating from her latest battle, Charlie starts to notice something might not be right with her. Still searching for the Loom, Constantine and Zari find themselves trapped in a 1910 boarding house with a slew of out-of-time Encores. Meanwhile, Ava, Gary and Rory take a trip while Nate and Charlie hold down the Waverider.