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Darkness Episodes

Season 1, Episode 2

Forgotten Tomb

For six days, a Marine Reserve, a Navy survival instructor and an engineer battle isolation, hallucination and starvation as they struggle to escape an abandoned Cold War fallout shelter 240 feet underground in California's Mojave Desert.

Season 1, Episode 3

Cave of the Seven Serpents

A firefighter-training officer, a retired bomb technician and a former Green Beret spend six days in complete darkness fighting to find the exit of a treacherous cave system deep underneath the Ozark Mountains. Isolation, hallucination, dangerous accidents and hordes of snakes complicate the mission.