Animated action adventure based on the DC Comics superhero series. Pilot Hal Jordan (voice of Christopher Meloni) unexpectedly becomes a protector of the Universe when a dying stranger gives him a mysterious ring. For his training programme, Hal is assigned to senior Green Lantern Sinestro (Victor Garber) but soon learns of his mentor's plans to bring down the Guardians of the Universe. It is up to Hal to save the Green Lantern Corps from destruction.