[1] The film depicts a pair of North Korean sailors who find themselves in South Korea and their subsequent attempts to return home.

Hard-nosed North Korean navy officer Baek-doo Choi (Jung Joon-ho) and his light-hearted sergeant Dong-hae Lim (Gong Hyung-jin), go on a fishing trip in the Sea of Japan.

They are continually shocked by the culture of South Korea, but eventually recover their bearings and befriend a girl, Han Nara (Ryu Hyun-kyung).

Unfortunately for the sailors trapped in enemy territory, Nara is a runaway and her father is a police chief, which only makes it more difficult for them to blend in.

After their repeated attempts to escape fail, they enter a talent contest in order to win the first place prize: a trip to Mount Kumgang, North Korea.