Cheng Chu and Cheng Lin are brothers, who grow up in a rather ill-off family. Chu later becomes a gang leader while Lin as a senior high student. Lin is under the pressure of college entrance exams and becomes restive. Ah-Chiang, Lin's boyhood friend deserts the army and runs away with military weapons. He hides in Lin's rented house, shoots a policeman to death by accident and flees with Lin. They kidnap a fashion model, Sophia...