Ace test pilot Hal Jordan, who leads a secret life as Earth's guardian Green Lantern, is called back to Oa. Searching for the culprits behind a series of Green Lantern deaths in "Frontier Space", Hal and his gruff fellow Green Lantern Kilowog “commandeer” The Interceptor, a prototype spaceship powered by pure Green Lantern energy and an advanced artificial intelligence system that Hal names Aya

Oa is infiltrated by the Red Lanterns.