Simon and Kamina live in an underground city monitored by the village chief. When Simon stumbles upon an artifact and beastmen invade from the surface, Simon and Kamina rebel against them.
Gurren Lagann, known in Japan as Tengen Toppa Gurren Lagann , is a Japanese mecha anime television series animated by Gainax and produced by TV Tokyo, Konami Digital Entertainment, Dentsu and Aniplex. It ran for 27 episodes on TV Tokyo and its affiliates between April and September 2007. It was directed by Hiroyuki Imaishi with series composition by veteran playwright Kazuki Nakashima. Gurren Lagann takes place in a fictional future where the Spiral King, Lordgenome, rules Earth and forces mankind to live in isolated subterranean villages. The plot focuses on two teenagers, Simon and Kamina, who live in a subterranean village and wish to go to the surface. Using a mecha known as Lagann, they reach the surface and start fighting alongside other humans against Lordgenome's forces before fighting the forces of their true enemy.