To save his master, Pak Cheung Tien (Yuen Siu Tien) from certain death at the hands of dreaded eagle claw master Shang Kwan Yi Mun, played with gusto by kicking maestro Hwang Jang Lee, Chien Fu (Jackie) must combine the lethal art of snake fist with cat's claw (his own invention) and undergo some of the most tortuous training ever devised.