Sean Bean stars as swashbuckling British officer Richard Sharpe in Sharpe's siege. Sharpe marries his sweetheart, Jane Gibbons but then has to immediately leave her to go on a dangerous mission in the Pyrenees, to capture a French fort.

While Sharpe is battling with the French, his wife contracts a deadly fever which has swept through the British camp and endangers her life. Sharpe encounters his old enemy, Ducos and is compelled to stay at the fort an fight for his country, knowing that even is he survives he may never see his beloved new bride again.