When the Townsend family sets out on their annual camping trip, it promises to be a time of real togetherness for Renie, her husband Andy, and their twelve-year-old daughter, Katie — but that hope soon turns into a nightmare race for survival. As the day's light fades deep in the steamy Everglades, they find themselves in a deserted village built entirely on stilts, a place that seems stopped in time, where the air begins to hum and crackle, then explode with light. And when they recover, the Townsends make a terrifying discovery that puts their lives in deadly danger.