Martial arts master Terry Tsurugi (Sonny Chiba) may be an assassin-for-hire, but when he hears of a plot to kidnap Sarai (Doris Nakajima), the daughter of a dead billionaire, he offers her protection. As he attempts to keep Sarai safe, he also deals with a pair of siblings who refuse to pay up after Terry helps their convicted brother escape from prison. But it's Sarai's life he cares about, so when the mobsters manage to steal her away, Terry will battle whoever gets in his way to rescue her.