Norwegian thriller written and directed by Henrik Martin Dahlsbakken. The film follows Charlie (Heidi Toini), Adrian (Mads Sjogård Pettersen) and Viktor (Benjamin Helstad), three extreme sports enthusiasts and former soldiers as they attempt to navigate their way through an unexplored cave system deep in the mountains. Despite the caves being closed off following the mysterious deaths of two divers years earlier, the group decide to ignore the restrictions and carry on with their trip. However, after descending into the darkness the friends soon find themselves battling to survive as they discover they may not be alone.