After graduating from university, Il-ryeong goes back to his hometown, a small village beside the Nakdong River. Ok-nam is his lover and a teacher in his hometown. He cooperates with her in order to enlighten the people and to improve the village. Nakdong River is, along with The Street of Sun (1952) and A Bouquet of Thirty Million People (1951), one of the important films made during the Korean War that the Korean Film Archive has rediscovered and made available to the public.

Park, Ohn - Ran (Kim Shin - jae) has been watching the surroundings of the pawn shop owner Min - ga, who is the enemy who killed his father with Song (Choi Dong - san) for five years. The private house tries to rape her daughter who does not recognize her daughter Sunhee to leave the ring. Young-gil (Choi In-gyu) goes in front of the pawn shop and saves Sun-hee and the two hide in a nearby warehouse. Sunhee left after the mother who was driven by the private house and came back from liberation. Song binds Sunhee and Kyungil, but Olan releases her, saying that the house is the enemy and not the daughter. And after hearing the conversation between the two, he finds that he is his younger brother.