Leonard is in Florida to raise money for a brother and sister who think they know the whereabouts of a sunken treasure.

While working as a consultant for a movie, Alex gets an added responsibility when the producer is murdered in an editing room.

Leonard takes Alex to the town where he met Alex's mother, but there is a problem: the town's population has vanished overnight. A corpse and the site where a man was murdered seem to vanish without leaving a trace. After seeing strange lights in the sky, the Blackes have reason to suspect that aliens might have abducted a woman.