Episode 1: Birth

Tomoru Shindo, a college student from City 5, is having dreams of a mecha named Orgun and protecting a woman from an hostile mecha. A meteor enters Earth's atmosphere and heads for City 5, revealing itself to be a hostile mecha from an alien race called the Evoluder. Earth Defense Force (EDF) Professor Michi Kanzaki receives signals from the Moon that are coming from a crash-landed mecha named Orgun, and rebuilds it in her laboratory. Orgun escapes and confronts the invading mecha, inviting Tomoru to merge with him. Together, the two defeat the mecha. Tomoru learns that Orgun is a defector from the invading Evoluder, who plan to destroy Earth with the battle planet Zoma's antimatter cannon. The blind oracle Kumi Jefferson predicts the planet's destruction.