Spring has come to Moominvalley, and Moomin and his family come out of their winter hibernation. Up in Lonely Mountains Moomin, Snufkin, Sniff and Little My find a large top Hat, which they bring home. Too big to be worn they use it as a waste paper basket, but it is a Hat of magical qualities, and anything thrown into it changes into something completely different...

The Magic Hat is back in Moominvalley! The hat, stuck in a river of raspberry juice is secretly snagged by Moomin, hoping for endless juice. Little My has other plans to turn her string turn into yummy spaghetti, but will the Magic Hat have a surprising new trick?