Spy dad and spy-catching daughter? Dad? A clumsy(?) spy. It's 1974, and Lee Man-ho (39), who runs a dry cleaner's, has been a North Korean agent infiltrating the South for 14 years. He conducts espionage activities, secretly deciphering codes sent from the North every night for the sake of 'national unification,' but he's just a doting father who is more 'South Korean' than actual South Koreans. vs Daughter? A feisty, anti-communist girl with a temper. Man-ho's daughter, Sun-bok (11), is a fourth-grader and a passionate anti-communist. After receiving a 'Crime Prevention Education Award,' she throws herself into anti-communist speech contests and poster-drawing competitions, and collects leaflets to win prizes. Finally, she embarks on the 'spy hunt,' the dream of every anti-communist boy and girl. The spy she finally finds... is her dad?! While chasing grave robbers in the mountains, Sun-bok discovers her father is a spy, and Man-ho realizes Sun-bok has discovered his identity. The father and daughter are unaware that the other knows the truth. Man-ho worries that Sun-bok might get hurt because of him. What choice will this father and daughter, who resemble the protagonists of a cheerful comic book, make?