Lao-San (Liu Ye) is a decorated submarine chief; his brain was hurt in a drill. He was addicted to the thrill of beating up bad people. For this noble course, he trained himself Kung-Fu everyday to be quick, tough and strong. With his best friend deaf boy Smile, Lao-san went on the streets of Qingdao to fight gangs, robbers and criminals. He believes, with or without uniform, he is the man to destroy the evil.