Green Lantern: The Animated: Season 1, Episode 1 - ProjectFreeTV

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Hal Jordan, the Green Lantern of Earth, is summoned back to Oa and gets word that Frontier Lanterns have gone missing, killed by unknown assailants. With his former instructor Kilowog, Hal "borrows" a prototype interceptor and goes off to investigate, and learns that the mysterious Red Lanterns are killing Green Lanterns.