Justice League Unlimited, Season 1

A reluctant Green Arrow joins forces with the new Justice League to stop a rampaging nuclear monster in Asia.

Batman and Wonder Woman visit the fortress of Solitude on Superman's birthday, only to find him trapped by Mongul.

Superman, Batman, Wonder Woman and Green Lantern are transformed into 8-year-olds in a desperate attempt to save the world from the magic of Mordred!

Wonder Woman teams up with two super powered brothers, one warlike, the other a pacifist, to stop Ares' plans to escalate a European civil war into World War III.

It's musical mayhem when Batman and Zatanna join forces to save a teammate from a fate worse than death.

Supergirl discovers that a series of nightmares she's having about being an assassin may be far more than just a bad dream.

The Justice League is in an epic battle with Mordru in downtown Metropolis, but the real story is what happens to Booster Gold while he's supposed to be controlling the crowd.

Nearly two-dozen heroes join forces to prevent an all-powerful Android from reaching his goal, the recently reformed Lex Luthor.

The Justice League meets "The Ultimen," a popular group of young heroes who are about to discover their own horrifying secret origins.

When the entire League is helpless to stop an alien invasion, the world's only hope is the Atom, a microscopic superhero.

When Solomon Grundy rises from the grave, an old friend must come out of hiding and team up with the League once more.

Batman, Wonder Woman and Green Lantern chase a time-traveling villain to the past, where they team up with the greatest heroes of the Old West. (Part 1 of 2)

The Justice League's adventures in time take them to Gotham City 40 years in the future where they join forces with that era's Batman and his super team: The Justice League Unlimited. (Part 2 of 2)

Black Canary convinces Green Arrow to help save her mentor, the Wildcat, from his involvement in an underground, superpowered fight club.

The world's greatest escape artist needs help from the Flash in order to break a deadly enemy out of an inescapable prison on a harsh alien planet.

While Superman battles Doomsday in the heart of a volcano, Batman discovers an elaborate conspiracy to destroy the Justice League.

Five incarcerated supervillains are offered suspended sentences if they can survive an impossible mission: steal a deadly weapon from the Justice League's satellite headquarters.

Wonder Woman and Hawkgirl must put aside their feud and go to the depths of Tartarus when the evil sorcerer Felix Faust establishes dominion over Hades.

Green Arrow and Black Canary race to stop The Question and Huntress from killing organized crime lord Tobias Whale.

Before Superman can even try to stop Lex Luthor's latest plot, he'll have to get past the world's mightiest mortal, Captain Marvel.

Responding to a deep space distress call, Shayera leads her reluctant teammates Vigalante and Vixen into a deadly trap. Episode also known as Hunter's Moon.

The Question discovers a secret that threatens to shake the very foundations of the Justice League.

To avenge a fallen comrade, Superman declares war on Cadmus.

With the founding members out of action, the remaining 50 heroes fight to survive Cadmus' ultimate attack on the Justice League.

With most of the Justice League incapacitated, who will be left to stand against the League's deadliest enemies?

Fifty years in the future, the history of the Justice League is the key to Batman's darkest secret . . . and his final destiny.