Teacher Huang San extends to his pupils the high principles of patriotism, thus arousing the hatred of the occupying Japanese. Huang is forced to flee and to escape from the Japanese clutches. One night, he helps a robber escape from a pursuing Japanese officer by firing his gun and thus unintentionally kills the Japanese. Huang San follows to his hideout and from then on, Huang San joins the bandits. Huang San attempts to rob a house but discovers that the occupant is none other than his student Wang Zhongkang who is involved with the guerrillas. Huang San decides to help Zhongkang raid the military arsenal of the enemy. However, as Huang gradually gains the trust of their chief, some jealous associates within the bandit group informs on him. Huang and Zhongkang carry out their raid amid a fierce confrontation, Zhongkang successfully implements his mission but Huang is killed in the battle.
Four sisters, each with their different characters, embark on their separate roads to romance. Elder sister has vast experience of romance; second sister is predisposed to vampiness and wantonness; third sister is righteous and of noble character; fourth sister is just reaching puberty and experiencing the pangs of first love. Being sentimental, flirtatious and amorous, the four sisters form a backdrop conducive to songs and tripping the light fantastic.
