Renton Thurston is a normal 14-year-old boy who lived with his grandfather in a mechanic shop. He always loved to go reffing and admired, Holland, who was the leader of the Light Finding Operation (LFO) aircraft pilot group known as "Gekkostate". One day when a girl named Eureka came crashing down on Renton's garage with the original LFO known as the "Nirvash typeZERO" and brings up the attention of the military. Renton is forced to deliver a type of interface-- the "Amita Drive"-- to the Nirvash. After the Nirvash destroys the militaries LFOs, Renton is invited to the Gekkostate and soon comes to realize what it is really like being a part of a LFO.

Japanese Title: 交響詩篇 エウレカセブン
Number of episodes: 50