France, 1813. Wellington orders Sharpe to join the dashing colonel Brand on a hazardous journey behind French enemy lines with the aim of blowing up an ammunition store. Sharpe's wife Jane becomes disillusioned with Sharpe's frequent absences. Left behind in the camp, she warms to the attentions of another admirer. Meanwhile, Sharpe is out in the mountains and is dangerously outnumbered, with with the French ranks closing in. He must risk his own life, however, to confront a far deadlier enemy on his own side.