Also in the episode, Ra's al Ghul (Matt Nable) makes his debut on the series along with his typical posse, the League of Assassins.
Watch a promo for the episode, titled "Left Behind," below:
DC's Legends of Tomorrow 1x09 "Left Behind" - Ray (Brandon Routh), Sara (Caity Lotz) and Kendra (Ciara Renee) are shocked after they watch the Waverider fly off without them, leaving them stranded in the '50s. After waiting months for their teammates to come back, the three realize they must move on with their lives. Ray and Kendra bond as a couple but Sara decides to return to the League of Assassins and Ra's al Ghul (guest star Matt Nable). John Showalter directed the episode written by Beth Schwartz & Grainne Godfree (#109).
"Legends of Tomorrow" airs Thursdays at 8/7c on The CW.