Sang-yeon is a pastor who was adopted into America from Korea in childhood. He visits his native Korea after a long time when he reconnects with his biological family - his birth mother and brother - with the help of a television show. A touching reunion of long-lost brothers quickly dissolves into an awkward situation when Sang-yeon discovers that his younger brother has become a shaman and vice versa. In the meanwhile, the brothers’ mother who suffers from dementia wanders off out of the studio and gets on a random express bus. Even before the embarrassment wears off, the brothers are forced to put their differences aside and go on a search together for their missing mother who seems to stay one step ahead of them as she travels around the country.