After the shocking death of one of their own, Clarke and Finn grow closer as they try to figure out a way to communicate with the Ark. Bellamy must keep the group from turning on one another as life on Earth takes a desperate turn. Meanwhile, Abby risks having herself floated in order to give Raven the chance to stow-away in the escape pod bound for Earth.
Elenco: Eliza Taylor , Bob Morley , Marie Avgeropoulos , Lindsey Morgan , Paige Turco , Christopher Larkin , Isaiah Washington , Henry Ian Cusick , Richard Harmon , Devon Bostick , Ricky Whittle , Thomas McDonell , Alycia Debnam-Carey , Eli Goree , Tasya Teles , Shannon Kook , Zach McGowan , Shelby Flannery , Richard Harmon , Sachin Sahel .