Martial arts masters Billy and Jimmy Lee set out to rescue Billy's girlfriend Marian after she is abducted by the ruthless street gang known as the Shadow Warriors. Fighting through city streets, a treacherous Chinatown, cavern depths, and an enemy fortress, the brothers battle the gang's toughest members and rival martial artists standing between them and her. Whether facing the onslaught alone or side by side, the Lee brothers must punch, kick, and grapple their way to the gang's stronghold to bring Marian home.