Korgoth of Barbaria is a pilot episode for what was originally planned as an American animated television series created by Aaron Springer, storyboard writer and director for Dexter's Laboratory, The Grim Adventures of Billy & Mandy and SpongeBob SquarePants. The pilot episode first aired in the United States on June 3, 2006 at 12:30 AM on Adult Swim. The pilot received mostly positive reviews. On June 18, 2006, Adult Swim ran a bumper announcing Korgoth of Barbaria was officially picked up as a series. Later events, including a formal petition to revive the show, would indicate that it was dropped before production began.

In Manila, where dark supernatural forces pervade the criminal underworld, it’s up to Alexandra Trese to keep the peace — but there’s a storm brewing.

Mark Grayson is a normal teenager except for the fact that his father is the most powerful superhero on the planet. Shortly after his seventeenth birthday, Mark begins to develop powers of his own and enters into his father’s tutelage.

Shinichi Izumi is a normal high school boy whose right hand has become infected with an alien parasite that names itself "Migi" ("right"). Migi is the first parasite to develop a symbiotic relationship with its host, as he and Shinichi slowly develop a grudging friendship. Migi isn't the only Parasite on earth, however, and as cases of Parasites killing humans begin to emerge, humans seek to kill off Parasites. Shinichi and Migi find themselves caught in between these two sides of the struggle over planet earth.

Luz, a self-assured teenage human girl, accidentally stumbles upon a portal to the Demon Realm.

In order to protect her daughter, a young single mother is forced to fight after acquiring a powerful ancient weapon.