In 1911, veteran army officer C. W. Langhorne accepts a clandestine assignment that will carry him into revolutionary Mexico for the War Department along with the handsome young ladies' man, Lieutenant Calvin Jester. While Langhorne runs afoul of the 'Acordada, the Mexican secret police organization, Jester finds danger of his own enjoying the attentions of both Fabiana Medina, a rich young beauty, and the poor but sincere Luna Garcia while he recovers from a serious injury.