While under the tutelage of senior Green Lantern member Sinestro (voiced by Victor Garber), test pilot Hal Jordan (Christopher Meloni) learns that key members of the intergalactic police squad are conspiring to destroy the organization from within. Despite his inexperience, Hal sets out to thwart the traitors and preserve the Lantern Corps' sanctity. Michael Madsen and Tricia Helfer also lend their voices to this animated sci-fi adventure.