Policeman Chin is badly beaten in a confrontation with a street gang. A young martial artist comes to his rescue and takes Chin back to his master. When the young man is also defeated in a street brawl, the Kung Fu master decides to teach both the wounded men the art of the 'Sleeping Fist'. After the training is complete, they set about avenging the beatings. However, an 'Eagle Claw' master has been hired to break the 'Sleeping Fist'...