It's good news/bad news for the alien-fighting Gantz warriors. The good news: Kei Kurono is back on the Tokyo team, resurrected after his second death. The bad? A massive unknown flying warship has appeared, laying waste to the planet's leading military superpower. Gantz teams from all over the world are gathered to fight back, only to be overwhelmed by an endless stream of terrifying foes. Is Armageddon now inevitable?