The World has become a lawless place. Anarchy rules the streets, and warlords take power by brute force. The streets are ruled by warlords. One warlord is Bosco, a ruthless killer who is obsessed with perfecting his power through martial arts. Together with Cleo, Bosco's lascivious partner, he kills Master Thach, keeper of a sacred book of marital arts. Master Thach's last pupil is Jonas, an orphan who Master Thach raised and taught all he knew. Jonas survived Bosco's attack with the help of a friend, and now returns to the city to reclaim the lost book.