Justice League (Season 1, Ep 13): War World Part 2

Superman learns that Mongul has a planet-destroying weapon. Mongul tells Superman that he must lose on purpose, and die, or a planet will be destroyed.

Justice League (Season 1, Ep 12): War World Part 1

Superman and Martian Manhunter are captured by space pirates and sold to a planet that pits aliens against each other in combat to the death.

Justice League (Season 1, Ep 11): Paradise Lost Part 2

The Justice League visits Themyscira to rescue the Amazons and to stop Hades from escaping from Tartarus.

Justice League (Season 1, Ep 10): Paradise Lost Part 1

Wonder Woman returns home to Themyscira and finds her Amazon sisters turned to stone.

Justice League (Season 1, Ep 8): Injustice For All Part 1

Lex Luthor gets a terminal diagnosis. He responds to this news by putting together a team of villains.

Justice League (Season 1, Ep 7): The Enemy Below Part 2

The Justice League must work to undo a coup in Atlantis and stop the resulting attack on the surface that comes from it.

Justice League (Season 1, Ep 6): The Enemy Below Part 1

The Justice League makes contact with Atlantis after the Atlanteans sink a submarine.

Justice League (Season 1, Ep 5): In Blackest Night Part 2

Superman, Flash, J’onn, and Hawkgirl investigate whether John Stewart really is guilty of destroying an entire planet. They uncover a much larger scheme.

Justice League (Season 1, Ep 4): In Blackest Night Part 1

John Stewart, the Green Lantern, is brought for trial. He stands accused of destroyed an entire planet and everyone on it.

Justice League (Season 1, Ep 3): Secret Origins Part 3

The new team of superheroes must save Superman and Hawkgirl before the leader of the invaders – the Imperium – arrives.