In early 1800s colonial Argentina, Belgrano leads a revolt against the oppressive Spanish authorities, and his poorly trained and badly equipped army inflicts a series of stunning defeats on the superior Spanish and loyalist forces. Monica, Belgrano's sweetheart, is the daughter of a prominent loyalist but is also a spy for Belgrano, sending him valuable information until she is caught and sentenced to be beheaded. Belgrano must gather his forces to rescue Monica before she goes under the headsman's axe.