Danny Dyer hosts the show in which eight celebrities are challenged to live for eight days in complete darkness. The contenders - Chris Eubank, Paul Gascoigne, Max George, Nicola Adams, Chris McCausland, Scarlett Moffatt, Donna Preston and Chloe Burrows - must complete a series of challenges to allow them to win, or lose, vital resources. In the first episode, Scarlett is given a secret mission with night vision goggles.

The celebrities have been living in the dark for 30 hours, and tensions are already reaching boiling point. Chris Eubank still isn't happy about the swearing in the group, prompting Chris McCausland to defend the younger members. They are shackled into pairs for 12 hours, with one pair forced to spend an extra 12 hours trapped in a two metre square box.

Chris Eubank is still not happy, this time it's due to Gazza telling a story about spending nine hours on a plane next to a dead man. In another challenge, the celebrities are asked `What's in the Box?" as they try to identify a Cumberland sausage, gherkins and a rabbit in complete darkness.