A volcano erupted on Mihara Island, a subtropical paradise about 850 kilometers south of Tokyo, forcing the entire island population to evacuate. Kitazawa, the ace of the baseball team at the only high school on the island, is told by his former partner Yukio Koharimaki in Tokyo, where he has been evacuated, that the baseball team has been disbanded. What will be the fate of the former teammates who went to different high schools to fight...?