There's one month until Megalonia and it looks like Yukiko Shirato's brother, Mikio, is a lock to be the final entrant. Will Joe and Team Nowhere find a way to secure their spot in the Megalobox championship tournament?
In the run-down slums of a futuristic city, the boxer known only as JNK.DOG is making a living throwing fights for the mob in underground arenas. That all changes when he has a chance encounter with the champion, Yuri.
Joe has risen to the top and finally gets his chance of a rematch with Yuri. Yuri himself also feels joy in his chance to fight with Joe. The final battle begins!