Zo In Sung, Park Jeong Min, and Park Hae Joon, the cast of the movie called 'HUMINT,' visit Gangdong-gu. As Gangdong-gu is the hometown of In Sung, he is called 'Gangdong’s Son,' and he shows his pride there. They meet the Whenever Friends in Gangdong and feel quite good about their teamwork. Will they succeed in the missions for the Whenever Friends?
