Ding Fang, a hotel attendant who loves model airplanes, was kidnapped by a mysterious man after discovering the wreckage of a stratospheric balloon and boarded the terrifying air demon ship "Foot Bone". On the Air Demon Ship, Ding Fang witnessed an air battle and learned that it belonged to a "country without a country." After being brought to the ice field, Dingfang encountered a strange man on the ice and experienced a life and death crisis. Fortunately, he was rescued by people on board the Japanese exploration ship "Wakatakamaru". Unexpectedly, "Wakatamaru" suddenly faced the dilemma of disintegrating and sinking. At the same time, Ding Fang found himself being exploited by the Sky Demon Ship and inadvertently leaked the secrets of the expedition team. Colonel Otsuki decided to form a death squad to attack the air demon ship base, and Dingfang also participated in it. Will they succeed?
