Macaroni, an Italian mongrel, lives with Fettuccine family in a pizzeria near the ancient town of Pompeii. Content to snooze in the shade, he is stunned to find himself carried back 2,000 years to Pompeii in the reign of Caligula. Plunged into a madcap world, he becomes a dog with a cause, sniffing out treachery, pitting his wits against villains.