Desert gas station with two headed snake

After kidnapping a father and his two kids, the Gecko brothers head south to a seedy Mexican bar to hide out in safety, unaware of its notorious vampire clientele.

A bank-robbing gang of misfits heads to Mexico with the blueprints for the perfect million-dollar heist, but when one of the crooks wanders into the wrong bar, the thieving cohorts develop a thirst for blood.