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.

Nuclear scientists mysteriously disappear when Vandal Savage retreats behind the Iron Curtain in the early 1980s. The team follows Vandal's trail in an effort to find his next target, while Ray bonds with a beautiful Soviet scientist. Stein pushes Jax to be better, which frustrates Jax and ultimately threatens the Firestorm matrix. Rip asks Sara to train Kendra.

After some of the Legends are captured and thrown into a Russian gulag during the height of the Cold War of 1986, Snart leads the team in an elaborate escape plan to free their comrades. However, Rip gives Sara a secret side mission that could prove not only to be a liability, but fatal to the team.

When a malfunction sends the Waverider crashing into 2046 Star City, our heroes face a startling version of their own future where they never stop Savage and never return home. The city is in ruins and overrun by criminals, which thrills Rory. Sara is despondent over the destruction of her home and stunned when she learns what happened to her old friend, Oliver Queen.

The team tracks Savage to a small town in Oregon during the 1950s. Upon arrival, they discover there have been a recent string of murders and they suspect Savage is involved. Professor Stein and Sara go undercover at a psychiatric hospital, where Savage is working as a doctor, to find out his plan. While there, Sara meets a nurse named Lindsay and sparks fly. Meanwhile, Ray and Kendra pretend to be a married couple to gain the neighborhood’s trust, but an interracial couple in the ‘50s isn’t something that goes unnoticed. Soon, Savage is at their door.

Being in the vicinity of the Time Masters leaves Rip and Rory incredibly disturbed for very different reasons. Meanwhile, Sara takes over the Waverider, Kendra is reunited with Carter and Snart decides he might be a hero after all.