The 100

CW | 8:00 pm

A hopeful new day seems to be dawning in Sanctum in the new episode "The Stranger," but a challenge looms for Clarke, Octavia, Raven and Echo (Eliza Taylor, Marie Avgeropoulos, Lindsey Morgan, Tasya Teles), who find themselves struggling when it comes to dealing with a new new foe. Richard Harmon, Shannon Kook, JR Bourne, Shelby Flannery and Chuku Modu also star.