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:
: Arrives last, quickly making his presence known with his speed and lighthearted attitude. The Fall of Mars Episode 2: Secret Origins (2)
are overwhelmed by knockout gas and captured in Metropolis. Episode 2: Secret Origins (2)
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)