The episode ends on a grim cliffhanger: while Wonder Woman escapes with an injured J'onn, inside the exploding facility and is believed by his teammates to have perished.
The invaders, who are nocturnal and find sunlight fatal, begin constructing massive factories to shroud Earth in perpetual darkness. To stop them, the heroes split into teams to sabotage these facilities: Episode 2: Secret Origins (2)
: Arrives last, quickly making his presence known with his speed and lighthearted attitude. The Fall of Mars The episode ends on a grim cliffhanger: while
After being telepathically summoned by (Martian Manhunter), a diverse group of heroes converges to rescue him and Superman from a military base overrun by shape-shifting invaders. The team includes: The Fall of Mars After being telepathically summoned
: Arrives just in time to catch Batman’s falling plane with his power ring.
In the second part of the Justice League premiere episode, "," the world’s greatest heroes finally unite to combat a global alien invasion. The Heroes Assemble
J'onn reveals the tragic history of his home planet. A thousand years ago, Mars was a peaceful civilization until these parasitic invaders arrived, feeding on Martian psychic energy and eventually wiping out the entire race. J'onn, the sole survivor, had kept them in stasis for centuries until Earth astronauts accidentally released them. The Invasion Intensifies