Cheoljung, the chief chef of Okryugwan in North Korea, is separated from his younger brother in South Korea. One day, he was dispatched to make Pyongyang Naengmyeon, for the request of South Korea at the 2018 Inter-Korean Panmunjom Summit. At the same time, his younger brother is also attending as a South Korean entourage. Despite his old age, Cheoljung goes to the Panmunjom to make Pyongyang Naengmyeon which their mother used to cook for the family.