Demetrio Macias, a peace-loving Indian, becomes caught up in the rebel cause, and climbs the ranks in Pancho Villa's army only to have the people turn against him in the wake of defeat.
When Sierva Mar?a, the only child of a decaying noble family, is bitten by a rabid dog on her twelfth birthday, she is believed to be possessed and is sent to a convent where Father Cayetano Delaura oversees her exorcism.