In this tribute to the old time spaghetti westerns with a liberal dose of modern Hong Kong film-making thrown in, Emilio Estevez assumes Clint Eastwood's "man with no name" role. Estevez plays a super-quick gunman on the run from a rancher (Long) and his men out to kill him for killing his son. The gunman gets mixed up with a former Confederate soldier (William Forsythe) who has knowledge of hidden gold. The only trouble is he is also pursued by Union soldiers. When they free a man (Ed Lauter) with part of the map to the gold, they then are also pursued by Spanish soldiers. It all leads to a small Mexican town terrorized by soldiers and led a by a good priest (Joaquim De Almeida) who also has knowledge of the gold.

Captain Saxon, an agent for the top secret Omega agency, has been given the assignment of tracking down and either capturing or killing the crew members of a secret space mission who returned to Earth against orders. It seems that they were all infected with an alien parasite, and they were trying to bring its eggs back to Earth. The eggs were lost in an accident, and both Saxon and the astronauts are trying to locate them.