DC's Legends of Tomorrow
S01E09 Left Behind
Ray, Sara, and Kendra are stunned as they see the Waverider take off without them, leaving them stuck in the 1950s. After waiting for their teammates to return for several months, they come to the conclusion that they need to adapt to their new reality. As Ray and Kendra grow closer romantically, Sara makes the decision to rejoin the League of Assassins and Ra's al Ghul, choosing a different path for herself.