A weekend camping trip spirals into a desperate struggle against the supernatural when an age-old demon and a formidable female warrior bring their timeless conflict into the modern era. Jason Parks, hoping to rekindle his romance with his former fiancée Jasmine, organizes a camping getaway with her, his best friend Ricky, and their friend Renee, who has a fascination with witchcraft. Unbeknownst to Jason, Jasmine’s romantic interests have shifted—she’s now more inclined to pursue Renee than to reunite with Jason. Meanwhile, Renee has been plagued by terrifying dreams about Summer Vale, a young girl who disappeared without a trace two decades ago. In an attempt to reach out to Summer’s spirit, Renee accidentally opens a portal to another dimension, releasing a ferocious demon. Luckily for the terrified campers, an adult Summer, now a sword-wielding warrior, emerges through the portal as well, determined to vanquish the evil entity.