"His Sister's Keeper"
GONE GIRL — Bellamy (Bob Morley) leads his crew into Grounder territory as they search for Octavia (Marie Avgeropoulos). Raven (guest star Lindsey Morgan) can’t help but notice the deep connection between Finn (Thomas McDonell) and Clarke (Eliza Taylor). Meanwhile, flashbacks reveal Bellamy’s and Octavia’s childhood on the Ark. Paige Turco, Isaiah Washington, Henry Ian Cusick, Devon Bostick and Chris Larkin also star. Wayne Rose directed the episode written by Tracy Bellomo & Dorothy Fortenberry (#106).