After his father's death, Martin took his pregnant wife, Julia, to a remote town near New York to start a new life CCC. Christine, Daniel, Helden, and Tommy are four graduating college students who choose hiking as the last memory of their student life. The sudden power outage scared the town's residents, the gas station and power plant shut down, and the whole country was plunged into darkness, but senior researchers could not find the cause of the power outage. It's not terrible when it's dark, it's the darkness that hides in the light......