Mitch Robbins 40th birthday begins quite well until he returns home and finds his brother Glen, the black sheep of the family, in his sofa. Nevertheless he is about to have a wonderful birthday-night with his wife when he discovers a treasure map of Curly by chance. Together with Phil and unfortunately Glen he tries to find the hidden gold of Curly's father in the desert of Arizona.
Three New York businessmen decide to take a "Wild West" vacation that turns out not to be the relaxing vacation they had envisioned.
A group of young gunmen, led by Billy the Kid, become deputies to avenge the murder of the rancher who became their benefactor. But when Billy takes their authority too far, they become the hunted.
Ray Tango and Gabriel Cash are narcotics detectives who, while both being extremely successful, can't stand each other. Crime Lord Yves Perret, furious at the loss of income that Tango and Cash have caused him, frames the two for murder. Caught with the murder weapon on the scene of the crime, the two have no alibi. Thrown into prison with most of the criminals they helped convict, it appears that they are going to have to trust each other if they are to clear their names and catch the evil Perret.
