In the late 1910s, amidst the chaos of the Mexican Revolution, a wealthy rancher, Mr. Grant, faces a dire situation when his wife, Maria, is kidnapped by Jesus Raza, a notorious revolutionary leader. Desperate for her safe return, Grant enlists the aid of four skilled men: Henry "Rico" Fardan, an expert in weapons and tactics; Jake Sharp, a skilled scout and tracker; Bill Dolworth, a dynamite expert; and Hans Ehrengard, who is tasked with handling the horses. Each man brings a unique set of skills to the mission, and together they are offered a substantial reward of $10,000 for the successful rescue of Mrs. Grant.

The team embarks on a dangerous journey across the harsh desert landscape to infiltrate Raza's heavily guarded fortress and carry out their mission. Along the way, they face numerous challenges, including violent encounters with Mexican rebels and navigating through treacherous territory. As they delve deeper into enemy lines, they begin to uncover the complexities of the situation, realizing that there's more to the kidnapping than meets the eye. Their resolve and loyalty are tested as they confront the moral implications of their actions and the true nature of their mission.