Kurono es un chico normal, estudiante de secundaria, que en un mundo egoísta, tan solo se preocupa de sí mismo. Sin embargo se ve obligado a ayudar a Kato Masaru, amigo suyo de la infancia, que pretendía salvar a un vagabundo caído en las vías del tren. Kurono y Kato consiguen salvar al vagabundo, pero no sus vidas y son arrollados por el tren. Cuando parece que sus vidas han acabado aparecen en una extraña sala con una esfera negra, llamada GANTZ, en la que encontraran armas y trajes, si quieren volver a casa y seguir vivos deberá participar en un "juego" de peligro y horror sin precedentes.
Gantz (Temporada 2)

Goodbye (Episodio 1) 6.0
Guionista: Masashi Sogo
Fecha de emisión: 2004-08-26
Duración: 25 min
Sinopsis: Change is in the air for the players of the deadly game. Fed up with his aunt, Kato finds a new place to live with his little brother. Meanwhile, Kei’s attitude pushes Kishimoto away, and Tetsu’s life spirals brutally out of control.

I Wanna Be There Now! (Episodio 2) 8.0
Fecha de emisión: 2004-09-02
Duración: 25 min
Sinopsis: The Gantz calls the players for another round. Among the new faces gathered before the sphere: a television evangelist that thinks he has all the answers and a girl who seems willing to give Kei the attention he seeks.

I'll Do It! (Episodio 3) 7.5
Fecha de emisión: 2004-09-09
Duración: 25 min
Sinopsis: When Kato shares what he knows in an effort to help the new players, the evangelist begins to think something sinister is afoot. The holy man learns just how correct he is as the game’s new targets make their presence known.

I Can Shoot Them, Can't I? (Episodio 4) 8.0
Fecha de emisión: 2004-09-16
Duración: 25 min
Sinopsis: The team’s efforts to defeat the giant aliens are hindered by two thugs who are brutally tormenting a homeless man - the very same homeless man that Kei and Kato encountered just before their deaths.

Welcome Back (Episodio 5) 8.0
Fecha de emisión: 2004-09-23
Duración: 25 min
Sinopsis: Kei goes on a rampage, leading the battle against the giant aliens. Yet another unhappy surprise awaits the team.

What the Hell Is That?! (Episodio 6) 8.0
Fecha de emisión: 2004-09-30
Duración: 25 min
Sinopsis: After claiming victory against the giant red and green aliens, the group boldly rushes into battle against the smaller statues. Soon enough, they find their numbers thinned by an enormous new enemy.

Just Shoot Me! (Episodio 7) 8.0
Fecha de emisión: 2004-10-07
Duración: 25 min
Sinopsis: Several players meet with gruesome ends as the living statues continue their onslaught. Tragically, one of the mutilated victims is someone very dear to Kato and Kei.

Big Brother? (Episodio 8) 7.7
Fecha de emisión: 2004-10-14
Duración: 25 min
Sinopsis: The carnage continues and truly no one is safe. As wounded Kei struggles to stay alive, his teammates fall one after the other. When the final foe is defeated, only one player will be around to see the score.

Don't Ever Say That Again! (Episodio 9) 7.5
Fecha de emisión: 2004-10-21
Duración: 25 min
Sinopsis: Kei returns to the Gantz and finds many familiar faces will be joining him in battle. Unfortunately, Kei is shocked to see that their alien prey wears a familiar face as well.

Kurono Alien! (Episodio 10) 6.0
Fecha de emisión: 2004-10-28
Duración: 25 min
Sinopsis: With no explanation, the Gantz has chosen Kei to be hunted. At first, the rest of the players are unsure of what they should do - but the black sphere soon helps them decide that Kei should die.

No Labyrinth Is Inescapable (Episodio 11) 6.0
Fecha de emisión: 2004-11-04
Duración: 25 min
Sinopsis: The new players are beginning to see just how dangerous the two bum-killing freaks really are. As the situation escalates, the members of the team look to the one person who might be able to help them survive - Kei.

Let's All Go Back Alive (Episodio 12) 6.0
Fecha de emisión: 2004-11-11
Duración: 25 min
Sinopsis: Madness is taking over as the team hunts the two brutal maniacs in their midst. The number of fatalities grows quickly, and Kei begins to understand that the Gantz might not be his worst problem.

Please Live (Episodio 13) 8.0
Fecha de emisión: 2004-11-18
Duración: 25 min
Sinopsis: Facing his deadliest foe, Kei is forced to question everything he’s learned—and all that he has lost—in the twisted world of the Gantz. No matter if he lives or dies, for Kei, the game now ends.
