On the eve of retirement, Captain Nathan Brittles takes out a last patrol to stop an impending massive Indian attack. Encumbered by women who must be evacuated, Brittles finds his mission imperiled.

Based on the Kenneth Roberts novel of the same name, this film tells the story of two friends who join Rogers' Rangers, as the legendary elite force engages the enemy during the French and Indian War. The film focuses on their famous raid at Fort St. Francis and their marches before and after the battle.