A small-town radio disk-jockey is taken hostage by a deranged killer during her overnight shift. As the night progresses, a mysterious force outside unleashes zombie-like attackers, who see the radio station as their target.

Pilot Sandra Ramirez accepts a mission to explore an abandoned mining outpost near Mercury, where she stumbles upon a solitary crew member in hiding. She soon learns that a group of merciless hijackers will soon return to finish their job.