Fail-Safe

"Fail-Safe" is the upcoming fifth episode of the first season of DC's Legends of Tomorrow and the fifth episode overall.

Synopsis
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.