(TV-PG) (Japanese audio)
This is the story of a man who has yet to realize what destiny holds in store for him... Far in the future, humans have lived underground, quietly and restlessly, for hundreds of years, suffering from frequent earthquake and land subsidence. In Giha Village, one such underground community, live two young men. Simon is shy and naive, while Kamina believes in existence of a "surface" world above their heads.
Their destinies start moving drastically when the ceiling falls and a gigantic "Gunmen" and a beautiful girl named Yoko with a superconductive rifle come from the surface. Kamina, Simon and Yoko get on the "Lagann" that Simon digs out from the ground, and jump out to the surface! However, the surface is not quite the dreamland Kamina imagined...