A dock worker becomes a prizefighter, despite warnings that his manager is in the pay of the Mafia. He realises the truth when his girlfriend is kidnapped by the gangsters to force him into throwing a fight - but the proud pugilist is determined to save her. Blaxploitation thriller, starring Fred Williamson, Vonetta McGee and Charles Lampkin.

Hotheaded laborer B.J. Hammer can't go long without ending up in a fight, and, after he comes out on top in a particularly impressive workplace scuffle, word of his brawling skills makes its way to Davis, a top boxing manager. Hammer is hired by Davis and begins a lucrative career in the ring, only to find out that his new employer wants him to throw a fight and take part in other illicit activities. Hammer reacts to this news violently, and the feud is on.