Icy roads, a dark forest, and an escaped convict on the loose. It's not the vacation Sarah Wagner had envisioned. Then she takes a wrong turn in the blinding snow, and her car slides off an abandoned road. She's stranded, and the friend she's on her way to visit, at a remote winter cabin, isn't answering her phone. She sets out on foot to find the cabin, only to find that her friend is missing, leaving two small daughters behind.