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.

The story of a composer who was separated from his beloved daughter. Once the composer accidentally met a beautiful girl who can sing and dance well. After many twists and turns, the composer is convinced that this girl is his daughter.

Based on the story of the same name by Han Sorya, which tells one of the pages of the life of South Korean youth - her struggle against external interference and for the unification of the peoples of South and North Korea.