Caroline is visiting Italy from the United States, but her holiday hasn't started well. She's stuck assisting her archaeologist uncle in Pompeii, and the scrawny dog she was feeding knocks over a young guy riding a Vespa - and then the guy turns out to be one of her uncle's helpers, Gianni. Just when things couldn't get any worse, the big money guys funding her uncle's dig turn up, ready to turn Pompeii into a hotel and casino. The stage is set for a girl, a boy and a dog to accidentally uncover the murderous plans of Signor Macchiato and his henchman, travel along the sun-drenched Amalfi coast in a heart-stopping motorbike chase - and then work out how to save the Villa Deidamia, Caroline's uncle, all the dogs and Pompeii from destruction.