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.
Three of the original five "young guns" — Billy the Kid (Emilio Estevez), Jose Chavez y Chavez (Lou Diamond Phillips), and Doc Scurlock (Kiefer Sutherland) — return in Young Guns, Part 2, which is the story of Billy the Kid and his race to safety in Old Mexico while being trailed by a group of government agents led by Pat Garrett.