Hobart orders some hand bells so he can put on a show for everyone. The only problem is he can't play them! The other Numtums have lots of ideas to help Hobart master bell ringing. They suggest playing the bells in the right order, playing them on roller skates and Little Sandy even builds him a special bell-playing machine, the Ding Dong Bell-o-matic, but none of them work. Maybe it's time to send the hand bells back? Or maybe The Adventures of Super Numtum will provide the answer to Hobart's problems?