THE 100 – Thursday, February 25th at 9pm on CW50 – A QUIET AND MYSTERIOUS THREAT IS BREWING — Clarke (Eliza Taylor) is torn between vengeance and mercy. Meanwhile, Kane (Henry Ian Cusick) and Octavia (Marie Avgeropoulos) work together to avert a disaster, and Abby (Paige Turco) continues to worry about Raven (Lindsey Morgan). Isaiah Washington, Bob Morley, Devon Bostick, Christopher Larkin, Richard Harmon, Ricky Whittle also star. Dean White directed the episode written by Kira Snyder (#306). Original airdate 2/25/16.