In Beirut 1986, during the Lebanese civil war a Korean diplomat is taken hostage without a trace. Two years pass and long forgotten, a young diplomat Min-jun receives a phone call proving that the hostage is still alive. With the given mission, Min-jun is sent to Beirut to save the hostage with a bag of ransom money.

A group of unlikely heroes from across the Korean peninsula try to save the day after a volcano erupts on the mythical and majestic Baekdu Mountain.