Son of the Motherland

A resident of foreign intelligence, nicknamed 'badger', receives a new task through a sent messenger. Badger's subordinates Sen-ryur Pak, a doctor, and his wife Chon-ok Lee take action. They are participants in a new sabotage operation.

Life in Korea seen from the perspective of the 'cheollima' philosophy encouraged at that time. The aim of 'cheollima' was to speed up both the economy and cultural and artistic achievements.

The Lysynmanovites planned to kill Lee Min Se, a prominent scientist living in North Korea, in order to take possession of his discovery. To this end, they sent Park Dong Gyun to Pyongyang. After getting a close look at life in the Democratic People's Republic of Korea, Park Dong-gyun couldn't go through with the crime and decided to tell the Korean counterintelligence folks everything. With his help, a gang of seasoned saboteurs was exposed and caught.

During the Korean War, Chinese volunteers and the Korean People's Army supported each other and fought together. They shed blood in the name of friendship between the two peoples and praised the nobility, the spirit of internationalism.

A Japanese-speaking family in occupied Korea deal with the war.