The Green Lantern lights up adventure in this all-new CG animated action series from world-renowned producer, artist and animator Bruce Timm. Based upon the DC Comics legend, Earth's Green Lantern, Hal Jordan, a onetime test pilot. Set in the farthest reaches of deep space, GREEN LANTERN: THE ANIMATED SERIES finds Hal on the Guardian Frontier, where he must face down an invasion from the Red Lantern Corps.
Ace test pilot Hal Jordan (voiced by JOSH KEATON), 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 (voiced by KEVIN MICHAEL RICHARDSON) “commandeer” The Interceptor, a prototype spaceship powered by pure Green Lantern energy and an advanced artificial intelligence system that Hal names Aya (voiced by GREY DeLISLE).
Hal and Kilowog discover that a group of Red Lanterns, including the conflicted Razer (voiced by JASON SPISAK) and the vile Zilius Zox (voiced by TOM KENNY) have been targeting and eliminating Green Lanterns in Frontier Space. Along with the help from a surviving Frontier Space Green Lantern Shyir Rev (voiced by KURTWOOD SMITH), Hal and Kilowog must stop the Red Lantern leader Atrocitus (voiced by JONATHAN ADAMS) from destroying Shyir's home planet of Colony 12.
Hal and Kilowog drop captive Red Lantern Razer off at a prison asteroid run by the Spider Guild. However, when they learn that the wardens are torturing their prisoners, they go back to investigate and are captured... leaving only Razer and Aya to rescue them.
While Hal and Kilowog deal with a new threat, Aya reveals that she can transfer herself into a robotic body and leave the ship.
The Green Lanterns travel to Betrassus, a high tech yet medieval world, where they become embroiled in a murder investigation that could bring down Queen Iolande's kingdom before it even begins.
The Interceptor crew follows a power ring to an unknown world in search of a new Green Lantern.
Razer goes to the Red Lantern homeworld Shard in an attempt to do what the Green Lanterns can't, kill Atrocitus.
With supplies running low, Hal and Kilowog search an uncharted planet for food and find themselves each stranded on different sides of the two warring species that live here. Meanwhile, Razer must recharge his power ring.
The Green Lanterns save a different type of Lantern from an invading space monster. Grateful for their rescue, the Star Sapphires, whose power comes from love, invite everyone to their homeworld. It turns out, however, that the whole thing was a set-up to drain the Lanterns’ power rings by encasing them in crystals.
Hal and the gang must return to the planet Betrassus to help Queen Iolande defend her world. Her brother Ragnar has received a red power ring and eagerly accepts it. Now, Hal, Kilowog and the rest of the crew must save Queen Iolande and Betrassus before Ragnar takes over the planet... or destroys it altogether.
The Green Lanterns travel to a prison asteroid to find a legendary code that holds the key to crossing an impenetrable asteroid barrier called “The Maelstrom” before Atrocitus and his Red Lantern armada can do so. Unfortunately, a Thanagarian prisoner named Byth Rok is the only one that knows the code.
Hal and the Green Lanterns travel to one of the Ancient Wonders of the Galaxy – the Lighthouse – so they can seal off any path through The Maelstrom and prevent the Red Lantern armada from getting through. Atrocitus, the Red Lantern leader, sets a trap for Hal and manages to steal the ship so that he may finally have his vengeance on the Guardians.
Atrocitus wreaks vengeance on Oa, as the Red Lantern armada crosses into Green Lantern space – with only Kilowog to stop them. It's up to Hal to take the shortcut back to Earth by teleporting across the universe from the Star Sapphires’ homeworld of Zamora and stop Atrocitus and Zilius Zox from killing the Guardians.
Hal finds out that a new Green Lantern, Guy Gardner, has been named his replacement on Earth. Hal and Guy get along like gas and fire, which doesn't help in their battle against an entirely new threat-- autonomous killing machines known as "Manhunters."
Hal tries to get the band back together when he realizes Aya's very existence is in danger. They soon find themselves in a fight for their very lives when they encounter the Anti-Monitor, a godlike creature from a parallel universe who's reprogramming the Manhunters to help him consume the universe.
Knocked into the Antimatter Universe, Hal lands on a steampunk world. There, he meets the idealistic Steam Lantern, who patterns himself after the Green Lanterns. With help from his new allies, Hal must find a way back home before the Anti-monitor destroys his universe.
Hal, Kilowog, and Aya visit the Blue Lantern planet Odym to seek help in their battle against the Manhunters. Unfortunately, the power-boosting effect of the Blue Lanterns has an unexpected (and unwanted) side effect on their enemies…the Manhunters.
Hal Jordan loves having Sinestro around because, at heart, the senior Lantern is a rule-bender, when the situation calls for it – something Hal entirely understands. But when Sinestro starts behaving erratically, Hal has no choice but to lock him up.
The heroes attend a rebuilding ceremony between the Guardians and the Red Lanterns on their capitol planet, Ysmault. However, a rampant malfunctioning Manhunter threatens to derail the fragile state of peace between both sides.
A horde of Manhunters gives chase as our heroes' hope runs thin. Their will is truly tested as they prepare for an inevitable face-off against the unstoppable Anti-Monitor – a battle for the lives of everyone in the galaxy.
Hal, Kilowog, and Razer crash land on a planet with a poisonous atmosphere. With their power rings nearly depleted, their only hope is to seek refuge in a nearby domed city, completely overrun by thieves and hooligans. But teamwork’s a little tougher when no one can understand anyone else!
The evil Aya Monitor invades the planet Zamaron, blaming the Star Sapphires for the pain she feels from her heartbreak. The unsuspecting Carol Ferris is summoned to represent Love in a battle against Hate's champion, Atrocitus of the Red Lantern Corps.
The crew of The Interceptor searches the planet Okaara for the mythical Orange Lantern battery as a way to combat the Aya Monitor. The problem is, it's guarded under the watchful, and very greedy, eyes of Larfleeze, the one and only Orange Lantern.
Back on Oa, the crew of The Interceptor follow a series of clues which span across the galaxy, uncovering information about the mysterious "Science Director", Aya's secret origin, and how to put a stop to her destruction.
The Aya Monitor is after a secret weapon on the deserted planet Ranx, and sends a massive army of Manhunters to retrieve it. While Hal, Kilowog and Razer are ordered to the planet, the Green Lantern Corps, led by Guy Gardner, launch a simultaneous attack to beat her to it.
In the season finale episode, the Aya Monitor returns to the dawn of time to stop all emotion and all life from ever existing. Now, Hal must find a way to stop her - while Razer realizes the only way to save the universe may mean killing the woman he loves.