A man's brother dies of an overdose from a new and potent drug introduced by a drug gang. He puts off his wedding to a beautiful model and postpones taking over the family business while he travels to Hong Kong to learn Tiger Claw kung fu from its master. Then he plans to take his revenge on the drug dealers responsible for his brother's death.

In New York, racist Capt. Stanley White becomes obsessed with destroying a Chinese-American drug ring run by Joey Tai, an up-and-coming young gangster as ambitious as he is ruthless. While pursuing an unauthorized investigation, White grows increasingly willing to violate police protocol, resorting to progressively violent measures -- even as his concerned wife, Connie, and his superiors beg him to consider the consequences of his actions.