Benedict Arnold rounds up spies in New York; and Abe plots to destroy essential British supplies, but he will need his father's help.

When one of the Culper Ring members is captured, Arnold seeks to interrogate him with the help of a ruthless Col. Simcoe.

Abe's strategy to rescue Caleb takes a deadly turn; Anna must make a burdensome decision; Benedict Arnold has suspicions that Peggy is harboring a secret, which she is keeping from him.

As an unsettling rebellion begins to take hold in camp, the Culper Ring assesses that it must develop a new path; Benedict Arnold makes the discovery of an unlikely new ally; Rivington decides to teach Townsend a memorable lesson.

As he ultimately seeks to gain his revenge against Lt. John Simcoe, Abe journeys to New York and is introduced to Benedict Arnold; Anna's history comes into play, as a visitor from her past arrives in the continental camp.

The plot to abduct Benedict Arnold is initiated, as the New York operation takes a turn; Peggy finally becomes aware of Cicero's hidden secret; George Washington and the French clash over the use of the correct strategy.

Unexpectedly, Ben's intentions to kidnap Benedict Arnold run into a conflict with Abe's plan to eliminate Simcoe; in an unusual twist of fate, former adversaries become new allies, as loyalties experience a shift in perspective.

Abe finds himself perilously thrown into the midst of a fierce battle, as Ben eventually decides to make a direct appeal to General Washington; Townsend is determined to risk everything, while Caleb desperately seeks to find redemption.

Washington heads south to lay siege on Yorktown; Abe volunteers for the Continental Army; Peggy goes into labor.

A conclusion is finally reached in the American War of Independence, as the young country must now struggle to begin its journey of freedom; a reckoning of accounts between shadows and spies must be settled.