After a night of celebrating their beating the Fates, the Legends quickly discover that Sara is missing. Ava sends Rory and Behrad to follow a lead on who can possibly help them find Sara, while Constantine tries to work his magic. Meanwhile, Sara does all she can to try to escape but is shocked to learn who one of her kidnappers turns out to be.

The Legends are shocked when Rory takes command and manages to find the location of an important Alien, but he also lands them in the middle of the Cuban Missile Crisis. The team makes the decision to split up, leaving Nate and Zari to work together to stop a nuclear disaster alongside JFK while Behrad tries to leverage his newfound friendship to stop Castro from starting a war. Meanwhile, with Spooner's help, Rory makes an unlikely deal that could lead him on a solo mission to find Sara.

With Ava a wreck, the Legends make a last-ditch effort to keep Sara from being abducted in the first place, even knowing that it will alter the timeline. Sara grapples with a discovery about herself and is shocked when Rory finds her on the mystery planet. Meanwhile, Spooner envisions what her life would be like if she hadn't joined the Legends.

Behrad is disappointed because the Legends have forgotten his birthday. Meanwhile, Rory's behavior has been a little off, so Sara and Gary become determined to find out what happened, but Rory gets some unexpected news from his daughter, Lita.

With the Legends on high alert with their unwanted guest in their custody, Ava is tasked with the interrogation while Nate and Sara watch. Rory is struggling with the terrible pain in his head and Gary tries to help to manage it the best he can. Meanwhile, Zari enlists Astra and Spooner's help to figure what is going on with Constantine.

When Sara realizes Bishop's plan, Ava convinces Sara to allow the Legends to make exception to the rules to help fight back. Behrad comes up with an interesting plan, that allows Sara to connect with an old friend. Meanwhile, amidst a battle Sara and Ava make an important decision but need the help of the team to pull it off.

After defeating the aliens and saving Earth, the Legends find themselves stranded in 1925 Odessa, Texas with a destroyed Waverider. Wanting to help fix things, Astra tries using her powers, which creates unwanted attention from the town and that of the new Director of the Bureau of Investigation, J. Edgar Hoover. Realizing they need to escape, Sara and Ava create a distraction by going on a crime spree with Hoover hot on their tails. Meanwhile, Zari is finding it hard to get over Constantine, so Behrad suggests the only thing he knows that can help.

When the Legends arrive in Chicago, they come across a speakeasy that caters to a diverse crowd, however their presence results in upsetting a mob who in turn burn down the club. Wanting to make things right, Zari demands they help to fix the club by throwing a party, with a special performance by The Bullet Blondes, to help raise money to rebuild it. Coincidentally, Astra, Spooner and Gideon are also in Chicago and feel compelled to help a female musician sever ties to the mob, while also trying to reach the Legends.

When the Legends crash land in 1940s Seattle, they find themselves right in the middle of WWII with a surprise guest. Needing replacement parts to fix the time machine, Sara, Ava, Astra, Spooner and Gideon find themselves working in different sections of an airplane factory alongside "Rosies." With Astra frustrated with inequality in the workforce, she takes matters into her own hands. Meanwhile, Behrad offers to play host and help teach Nate about Persian culture and etiquette.

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.

The Legends are all disappointed and hurt by Gideon's actions, but Gideon is horrified when AI Gideon tells her about Gary. Itching to get back to doing what they love best, they realize that Gwyn has broken the treaty and must find him. Meanwhile, Sara keeps an important secret from Ava because she doesn't know how she will react.