Black Jack tells Dr. White to change the course of the Sky Hospital to the North Pole while they are told that the Doctors from around the world are working to cure to the Phoenix disease. Dr. Kuma reveals that they only have 21 hours to find a cure or die before a Nuclear Missile will be fired to destroy the Virus and all those infected. Renka boards the Sky Hospital planning to kill Jack, but her father, Zen Mantoku, tries to stop her and they shoot each other. Zen Mantoku dies but Renka survives and Jack operates to save her...