The British army, led by Sharpe, captures a high-ranking French officer, Colonel Leroux, who is secretly tasked with eliminating the Spanish spymaster El Mirador. After Leroux's escape to a nearby French fort, the South Essex Regiment prepares to launch a daring assault on the stronghold.

Sharpe
In the midst of his own emotional turmoil, a British officer is entrusted with safeguarding a vital component of Wellington's espionage network, while also grappling with the trauma of a young child and the ominous presence of French agents intent on sabotaging his mission.