The year is 1805, and the Calliope, with Richard Sharpe aboard, is captured by a formidable French warship, the Revenant, which has been terrorizing British nautical traffic in the Indian Ocean. The French warship races toward the safety of its own fleet, carrying a stolen treaty that could provoke India into a new war against the British — and render for naught all that Sharpe has bravely fought for till now.

          But help comes from an unexpected quarter. An old friend, a captain in the Royal Navy, is on the trail of the Revenant, and Sharpe comes aboard a 74-gun man-of-war called Pucelle in hot pursuit. What results is a breathtaking retelling of one of the most ferocious and one-sided sea battles in European history, in which Nelson — and Sharpe — vanquish the combined naval might of France and Spain at Trafalgar.