Animated action adventure based on the DC Comics superhero series. Former US Marine John Stewart (voice of Aldis Hodge) finds himself thrust into the middle of a galactic war after he is bequeathed a Power Ring. As Earth's Green Lantern, Stewart fights alongside fellow superheroes Green Arrow (Jimmi Simpson), Hawkgirl (Jamie Gray Hyder) and Adam Strange (Brian Bloom) as they bid to defeat Sinestro (Rick D. Wasserman) and put an end to his plan to eliminate every Green Lantern in the universe.