Season 1, Episode 3

1. Initiation

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

2. For the Man Who Has Everything

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

3. Kid Stuff

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!

4. Hawk and Dove

Wonder Woman teams up with two super-powered brothers, one warlike, the other a pacifist.

5. This Little Piggy

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

6. Fearful Symmetry

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

7. The Greatest Story Never Told

The Justice League is in an epic battle with Mordru in downtown Metropolis.

8. The Return

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

9. Ultimatum

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

10. Dark Heart

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

11. Wake the Dead

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

12. The Once and Future Thing Part 1: Weird Western Tales

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.

13. The Once and Future Thing Part 2: Time, Warped

The Justice League's adventures in time take them to Gotham City 40 years in the future.

1. Initiation

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

2. For the Man Who Has Everything

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

3. Kid Stuff

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!

4. Hawk and Dove

Wonder Woman teams up with two super-powered brothers, one warlike, the other a pacifist.

5. This Little Piggy

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

6. Fearful Symmetry

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

7. The Greatest Story Never Told

The Justice League is in an epic battle with Mordru in downtown Metropolis.

8. The Return

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

9. Ultimatum

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

10. Dark Heart

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

11. Wake the Dead

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

12. The Once and Future Thing Part 1: Weird Western Tales

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.

13. The Once and Future Thing Part 2: Time, Warped

The Justice League's adventures in time take them to Gotham City 40 years in the future.