To prevent Anna being blamed for the murder of a Royal Officer, Abe must find the culprit; Ben and Caleb interrogate Simcoe.

Abe and Richard grapple with orders to dig up gravestones; Ben and Caleb try to get their intelligence to General Washington.

On the run from the British, Ben is betrayed by his own militia. Abe travels with Richard to New York to spy. Mary confronts Anna.

During the early years of the Revolutionary War, a Long Island farmer is recruited to spy on the British army.

Celeb and Ben follow mysterious orders; Washington's army crosses into enemy territory.

Anna looks for enemy intelligence at an exclusive gentleman's party against Abe's wishes.

Simcoe tries to hunt out the rebel conspirators in Setauket. Ben is sent away on a secret mission.

An old threatening presence returns to Setauket, worrying Abe that Anna is no longer protected.

In the third-season premiere, Abe covers up a murder with an unlikely accomplice. Elsewhere, Benedict Arnold abuses his power as he settles into a new home in Philadelphia.

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

Abe heads to New York and runs into a desperate patriot along the way. Ben is tasked with creating America's first spy ring.

Ben sets a trap to capture a traitor in camp. Richard discovers Abe is conspiring with Major Hewlett. Caleb collides with Robert Rogers.

Anna, Ben, and Caleb devise ways of rescuing the abducted Major Hewlett. Mary attempts to motivate Judge Woodhull into action.

A spy in London sends an urgent message to America. Mary impedes Abe's attempt to restart the spy ring. Benedict Arnold arrives in camp.

George Washington teeters on the edge of madness. Abe and Hewlett endure great hardships at the hands of their respective captors, though the latter's ends unexpectedly.

Peggy gets Benedict Arnold to contact the British. Caleb plans an ambush for Simcoe. Anna tries to save Major Hewlett.

Ben is rescued by a mysterious woman. Abe tries to stop Anna from marrying Hewlett. Arnold begins negotiations with the British. Andre betrays Peggy.

Amidst a growing rebellion in camp, the Culper Ring must chart a new course. Arnold finds an unlikely ally. Rivington teaches Townsend a lesson.

Seeking revenge against Simcoe, Abe travels to New York and meets Benedict Arnold. A visitor from Anna's past comes to the continental camp.

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

Abe gathers intelligence in New York. Simcoe escapes his punishment. John André attends a ball in Philadelphia and meets Peggy Shippen.

Abe tries to recruit a new agent; Caleb and Rogers race to hunt down intelligence from London; Andre's history is exposed.

Abe makes one last effort to recruit a spy inside New York. Ben must determine who is a double agent.

The French join the fray. Caleb makes an uncomfortable trip and Abe makes an even more uncomfortable choice. Robert Rodgers finds himself unexpectedly unemployed.

Abe returns from prison with critical intel. Tensions rise between Hewlett and Simcoe. Arnold rescues Peggy from a rebel mob.