Time Master Rip Hunter puts together his diverse team to fight immortal villain Vandal Savage who is on the verge of destroying humanity in 2166.

The team battles Vandal Savage, and Atom's suit falls off and lands in the wrong hands. Stein realizes the best way to retrieve it is by contacting his younger self. Snart and Rory plan to steal a key element in defeating Savage. Carter helps Kendra remember something vital.

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.

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.