The ten-episode final season opens with notorious traitor Benedict Arnold (Owain Yeoman) taking his revenge on George Washington (Ian Kahn) by rounding up suspected rebel spies to impress his new British commanders. Meanwhile, Abe Woodhull (Jamie Bell) and the other members of the Culper Ring escape Arnold’s clutches and unintended consequences compel Abe to seek revenge. For his side to prevail, he must forsake his bloodlust and turn his attention toward the one thing that truly matters: winning the war.