Wellington prepares for a push into France from Spain, while a Spanish partisan leader offers to exchange 52 British deserters for 50 rifles, a deal Wellington accepts. Sharpe leads a team to make the exchange, accompanied by provosts and an officer he dislikes. Meanwhile, a woman searches for her missing husband, believed to be searching for Aztec treasure in the area.

Sharpe
A daring operative embarks on a perilous quest to swap firearms with renegade British soldiers, navigating treacherous terrain and facing off against ruthless Spanish insurgents with a mysterious Aztec flair.