Trailer
Kei Kurono and his childhood friend Masaru Kato attempt to save a man who has fallen onto the train tracks but are run down by an oncoming train. However, rather than finding themselves dead, they are transported to a strange apartment in which they find a mysterious black orb known as 'GANTZ'. In this inescapable room, they are provided weaponry and forced into participating in the extermination of 'aliens' in order to survive. While Kurono chooses to fight for survival, Kato refuses to engage in battle and rejects a world controlled by violence. Kurono and Kato along with the others sharing their fate are pushed to their limits in the relentless battles against the aliens. Is this world, which tests your will to survive, a game or reality?