Gurren Lagann the Movie: Childhood's End

Simon (Tetsuya Kakihara), Kamina (Katsuyuki Konishi), and Yoko Littner (Marina Inoue) live in an underground city where the village chief exercises control. When Simon finds an artifact, beastmen invade from the surface, prompting a rebellion led by Simon and Kamina. The film follows their fight against the invaders, showcasing mecha action and comedic moments between the characters.