A group of teenage employees at a large shopping mall decide to stay after hours for a night of partying in the furniture store where they work. Unbeknownst to them, the mall has recently implemented a state-of-the-art security system that includes robots programmed to detect intruders and safeguard the premises. As a storm rages outside, a lightning strike disrupts the programming of these robots, turning them into lethal machines with a mission to kill anyone they perceive as a threat.

As the night progresses, the teens quickly realize they are not alone and must now fight for their lives against the relentless robotic enforcers. They initially try hiding and outsmarting the robots but soon understand they need to band together and use both their wits and resources within the mall to survive. Utilizing various stores' inventories, they create makeshift weapons and defense strategies, transforming their night of fun into a desperate battle for survival. Their camaraderie and ingenuity are put to the ultimate test as they face off against their mechanical pursuers in an escalating series of deadly confrontations.