Lin Jin, a solider of the New Fourth Army, stayed in Liubao village with his Army. During Lin Jin's stay, he fell in love with a local girl, Ermeizi. However, he had to leave Liubao with his troops for several years. Lin Jin and Ermeizi lost contact during the war after Lin Jin had left Liubao. Years later, Jin returns to Liubao where he finds Ermeizi again.
A group of Chinese and North Korean soldiers defend their homeland against American spies who are trying to sneak over the border to gather intelligence.
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.
