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

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

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

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.

Anna tries to save the ring after Abe's cover is blown. Benedict Arnold seeks Washington's help against charges of treason. Townsend sends a signal.

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

Benedict Arnold plots to give West Point to the British. Andre negotiates for Peggy. Abe plots a revolt in Setauket.

The captured spies on both sides of the war head to the gallows. Benedict Arnold demands glory revenge.

Benedict Arnold rounds up spies in New York. 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 Colonel Simcoe.