Avsnitt 1 - I Am Legion
Gorilla Grodd invites Lex Luthor to join the Legion of Doom, a new and growing alliance of super villains; the Flash, Shayera and Fire respond to a call about a theft in progress on a remote island base full of advanced technology.
Avsnitt 2 - Shadow of the Hawk
An archaeologist named Carter Hall approaches Shayera with evidence that Thanagarians visited Earth 8,000 years ago, but Batman becomes suspicious when he discovers that Carter has been stalking Shayera for months.
Avsnitt 3 - Chaos at the Earth's Core
Supergirl, Stargirl, STRIPE and Green Lantern discover a land beneath the Arctic inhabited by an ancient civilization fighting against the brutal forces of a wizard named Deimos, who intends to become ruler with help from Metallo and Silver Banshee.
Avsnitt 4 - To Another Shore
Wonder Woman, Martian Manhunter and Green Arrow must stop the Legion of Doom from stealing a recently discovered Viking ship containing the preserved corpse of a warrior whose fabled invulnerability could make the Legion unstoppable.
Avsnitt 5 - Flash and Substance
When a group of Central City rogues unite to attack a museum opening in Flash's honor, Batman and Orion come to his aid, but the stakes increase after an infatuated reporter gets caught up in the fight.
Avsnitt 6 - Dead Reckoning
Superman, Batman and Wonder Woman try to help the ghost of a circus performer retrieve the stolen souls of his monastic order before Gorilla Grodd uses the souls to achieve his dream of world dominance.
Avsnitt 7 - Patriot Act
Green Arrow leads a team of non-powered superheroes to tackle an out-of-control Gen. Eiling after he willingly mutates himself into a monster and attacks a superhero parade in downtown Metropolis.
Avsnitt 8 - The Great Brain Robbery
When a magical accident causes the Flash and Lex Luthor to exchange minds, the heroes struggle to stop Luthor from wreaking havoc on the Watchtower while the Flash must stop the Legion of Doom from carrying out a plot without revealing his identity.
Avsnitt 9 - Grudge Match
Huntress comes to the rescue when Roulette returns with a new, all-female version of Metabrawl that ensnares mind-controlled Justice League members and pits them against each other in brutal fights.
Avsnitt 10 - Far From Home
The remaining members of the Legion of Super-Heroes transport Supergirl, Green Lantern and Green Arrow to the 31st century to help them rescue their teammates from mind-controlling villains, but Supergirl discovers she may not survive the mission.
Avsnitt 11 - Ancient History
The Shadow Thief returns and abducts Green Lantern, Shayera and Hawkman to reveal how they are connected to a pair of ancient visitors from Thanagar who tragically fell victim to jealousy and hate.
Avsnitt 12 - Alive!
As Lex Luthor looks for remaining traces of Brainiac in deep space, Grodd breaks free from imprisonment and leads a mutiny, inciting a civil war within the Legion of Doom.
Avsnitt 13 - Destroyer
The Justice League must work together with the Legion of Doom to stop Darkseid's army from taking over the entire planet; Lex Luthor searches for a way to end Darkseid's terror permanently.