At Christmas, the sleepy town of Little Haven, where Anna lives in, is being threatened by a zombie apocalypse. It is up to her and her friends to fight, slash and sing their way to survival. They realise that with civilisation falling apart around them, they will have to rely on each other to face the undead and save their loved ones.

An intriguing invitation brings six strangers together. Initially, they think they have gathered for a highly immersive escape room, but they soon make the sickening discovery that they are pawns in a sadistic game of life and death. Together, they move from one terrifying scenario to the next as they find clues and solve puzzles. But the players soon learn that exposing their darkest secrets may hold the key to survive.

Fire investigator Sean McCaffrey, son of the late Steven “Bull” McCaffrey, is now working at the same Chicago firehouse along with his uncle Brian (William Baldwin). When Sean is assigned to investigate a deadly fire, he and partner Maggie soon realize that they are dealing with something much more than a routine fire. The clues they discover lead them down a treacherous path of arson, murder, and international terrorism. Sean must use his intuition, along with the help of infamous jailed arsonist Ronald Bartel (Donald Sutherland), in a race to find out who is behind the fire and stop them from accomplishing their devious plans.