General Antonio Lopez de Santa Anna charges into a battle against an army of marauding Spaniards hell bent on retaking Mexico for King Ferdinand.
A cannon blows off the general’s leg. With death appearing to be a near certainty, the mysterious vampire Isadora makes her way to Santa Anna’s bedside and turns him into a vampire.
Quickly, we learn that Isadora represents, “The Legion,” an organization of vampires who have done the devil’s bidding for ages.
A bargain is struck. Santa Anna may rule Mexico, but he must unleash Satan onto the world.
Under Isadora’s counsel, Santa Anna takes advantage of the chaos created by a coup to execute the president and vice-president to declare himself Mexico’s chief executive.
The loyal but chagrined Colonel Arroyo gets promoted to General, but is dismayed that the people go along with Santa Anna’s chicanery.