20 years after discharge from the army and now an excavator driver, a former paratrooper who had been mobilized to suppress the May 18th Democratic Uprising in Korea in 1980, happens to find a skull in the ground one day. Driving his excavator, he pays visits to his former superiors one by one and realizes they were all both assailants and victims of the times.

20 years after discharge from the army and now an excavator driver, a former paratrooper who had been mobilized to suppress the May 18th Democratic Uprising in Korea in 1980, happens to find a skull in the ground one day. Driving his excavator, he pays visits to his former superiors one by one and realizes they were all both assailants and victims of the times.