Based on Alexander Rose's book Washington's Spies, AMC's TURN tells the untold story of America's first spy ring. A historical thriller set during the Revolutionary War, TURN centers on Abe Woodhull (Jamie Bell), a farmer living in British-occupied Long Island who bands together with his childhood friends to form the Culper Ring -- an unlikely team of secret agents who not only went on to help George Washington turn the tide of the war but also gave birth to modern spycraft.

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 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.