There was a time when the cyclops, these three-meter giants with one eye, were numerous and reigned terror on the Greek islands. However, these times have changed and only Polyphemus, last Cyclops and last son of Poseidon, God of the Oceans, remains. He survives somehow in a cave near a large forest in southern Greece. But one day, a group of young Americans on vacation come across his territory, which can only mean one thing for him : Open Bar !