Nine people from Legend Entertainment are flying on a private plane for a concert. The members of the show group, consisting of nine individuals, include Seo Joon-O, Choi Tae Ho, Ha Ji-A, Lee Yeol, Yoon So Hee, and staff members Ra Bong Hee, Jung Ki Joon, Hwang Jae Kook, and Tae Ho Hang. The plane gets involved in a mysterious accident. All nine survive, but they become stranded on a deserted island. Four months later, Ra Bong Hee returns to South Korea as the sole survivor of the plane crash.
