The Harts south-of-the-border boating holiday turns Jonathan and Jennifer into desperate fugitives, on the run from Mexican police and a gang of drug dealers.

A young boy shows up at the Harts gate in the middle of the night claiming to be Jonathan Hart, Jr. The child proves to be the unwitting pawn in his biological father's criminal plot.

The Harts are invited to a unique, off-beat party -- a treasure hunt at a haunted house. When another guest is murdered, the Harts race against time to find the murderer before someone else becomes victim.

Freeway runs away with a gun used to murder a wealthy neighbor. The Harts get involved in capturing the killer and intercepting a multi-million dollar jewelery shipment.

Max is taken hostage. The Harts scramble to save him by participating in a scheme aimed at robbing an international jewel salesman of $20 million in gems.