An ambitious mobster plans an elaborate diamond heist while seducing the daughter-in-law of a ruthless mob patriarch as a determined police commissioner closes in on all of them.

The "Satans" are a very cruel biker gang led by Anchor. The gang goes to a diner in the middle of nowhere in the California desert where they begin to terrorize Lew and his patrons and his waitress, Tracy. After a little killing, one of the patrons named Johnny manages to escape from the bikers into the desert. They need to reach a town before the Satans catch up to them and kill them.

Ying Ke-Feng, head of Peerless Manor, is an expert swordsman whose escort business transports 200,000 taels of silver to the capital each year. This year, however, he is afflicted with an infirmity that renders him unable to use his sword.