The 100 3×04 “Watch the Thrones” – Clarke (Eliza Taylor) discovers the mastermind behind a devious plan. Kane (Henry Ian Cusack) struggles to keep the peace. Meanwhile, Jasper’s (Devon Bostick) grief drives him to reckless behavior. Paige Turco, Isaiah Washington, Bob Morley, Marie Avgeropoulos, Lindsey Morgan, Christopher Larkin, Ricky Whittle and Richard Harmon also star. Ed Fraiman directed the episode written by Dorothy Fortenberry (#304). Original airdate 2/11/2016.