خلاصه داستان : بتمن با حمله‌ای از دنیای موازی ژاپن روبرو می‌شود؛ دنیایی که لیگ عدالت مخصوص به خود را دارد.

The Batman family has returned to the present to discover that Japan has disappeared, and a giant island - Hinomoto - is now in the sky over Gotham City. At the top sit the Yakuza, a group of superpowered individuals who reign without honor or humanity and look suspiciously like the Justice League. Now, it’s up to Batman and his allies to save Gotham!

خلاصه داستان :

Japan in the near future suffers an unexplained major disaster. Five years later, reconstruction is well underway. Two young researchers at a university are pinning all their hopes on robot development. Now their new interpretation of the eternal hero Astro Boy up until his birth is just about to start!