Darkness is a new type of reality TV's survival genre, that's being taken to new levels of mental and physical challenges. Inspired by sensory-deprivation training and extreme training scenarios of the U.S. military, Department of Defense and NASA, the series records what limits survivalists are willing to push themselves while trapped inside caves, abandoned mines and underground convolutions for up to six days. Working as a team, they do everything possible to exit complete darkness but struggle to combine their diverse skill sets as the effects of prolonged light deprivation take hold. To keep the experience as immersive as possible, participants are outfitted with custom-designed camera equipment, enabling them to document their own journey without any exposure to light or other anomalies.