From the bestselling author of In the Heart of the Sea, winner of the National Book Award, comes a surprising account of the middle years of the American Revolution and the tragic relationship between George Washington and Benedict Arnold.

In September 1776, the vulnerable Continental Army under an unsure George Washington (who had never commanded a large force in battle) evacuates New York after a devastating defeat by the British Army. Three weeks later, near the Canadian border, one of his favorite generals, Benedict Arnold, miraculously succeeds in postponing the British naval advance down Lake Champlain that might have ended the war. Four years later, as the book ends, Washington has vanquished his demons and Arnold has fled to the enemy after a foiled attempt to surrender the American fortress at West Point to the British. After four years of war, America is forced to realize that the real threat to its liberties might not come from without but from within.

In the summer of 1776, Washington's army in Brooklyn and New York City faced one of the largest invading forces ever assembled by the British Empire. After suffering a series of devastating defeats, Washington's vulnerable and dejected troops were forced to evacuate the southern tip of Manhattan Island. Three weeks later, however, near the Canadian border, one of his favorite and most talented generals accomplished a tactical miracle by stalling the British advance in a viciously fought naval battle on Lake Champlain. An American defeat would have effectively ended the war, and it was Benedict Arnold who saved his young country from ruin. Moving beyond the storied victories at Trenton and Princeton and the ordeal of the Continental army at Valley Forge, Philbrick shows how the injuries Arnold suffered at the Battle of Saratoga set Washington's greatest fighting general on the road to treason. Arnold was an impulsive but sympathetic hero whose misfortunes at the hands of self-serving po