A sleepy sea monster threatens to sink Britain with its snoring. Can William and Zeus wake it up before the land disappears below the waves?

William Popidopolis is in deep water! The kraken, a giant squid from Norse mythology, is extremely tired, and has swum from the warm waters of Bermuda to the colder waters of Britain for a long sleep. But if it falls asleep beneath the British Isles, the bubbles from its snoring will thin the water and Europe will sink! Zeus needs William's help to wake the kraken before Europe disappears below the waves...