Gantz tells the story of Kei Kurono and his friend Masaru Kato who die in a train accident and become part of a semi-posthumous "game" in which they and several other recently deceased people are forced to hunt down and kill aliens armed with a handful of futuristic items of equipment and weaponry.
This has been one of the stranger anime I've seen in a while. It was a great much needed break from ll of the other popular Anime titles out there.
This anime took me a couple of episodes to really get hooked into it but once it gets going you wont stop watching it until you get to the very end, and then you're like is there going to be more and sadly there is not. All around a great fast pace Anime.