Tae-su, a detective fighting organized crime, returns to his hometown for his high school friend Wang-jae's funeral. There, he meets his old friends Pil-ho, Dong-hwan and Seok-hwan and they reminisce. Suspecting something fishy about Wang-jae's death, Tae-su and Seok-hwan start investigating it, each in his own way. Their investigations lead to a land development project that Pil-ho is directing.

Yong-soo is an ex-soccer player who lives in a small coal-mine village in North Korea with his wife and young son, Joon. Although living in extreme poverty like many other families in North Korea, the family is happy just to be with each other. Then one day, Yong-soo's pregnant wife becomes critically ill. Let alone medicine, Yong-soo can't even find food for her in North Korea. So he decides to secretly cross the border to China hoping to find the medicine for his wife.

When a high school diploma becomes the key to unlocking his inheritance, a spoiled teen gets an invaluable lesson in life and love in a rural village.