A group of five mountaineers are hiking and climbing in the Scottish Highlands when they discover a young Serbian girl buried in a small chamber in the wilderness. They become caught up in a terrifying game of cat and mouse with the kidnappers as they try to get the girl to safety.

A relentlessly gritty action film, Reckoning Day takes its inspiration from modern day low-budget classics such as Evil Dead (Sam Raimi), Bad Taste (Peter Jackson) and El Mariachi (Robert Rodriguez), and gives it a uniquely British spin.