Little mouse Pattie dreams of big adventures - quite the opposite of her best friend, the cozy (vegetarian) cat Sam, who prefers to stay in their home, the Greek town of Iolkos, forever. When a statue in honor of Zeus, the father of the gods, is unveiled, it draws the wrath of Poseidon, the god of the sea, and a divine chain reaction ensues. Pattie's chance for adventure full of whimsical cyclops, a gang of mafia rats and even a real giant octopus!