Clangers

Tiny and Small are playing catch with a ball of Granny's wool. Small goes for a huge throw up into the air - and the ball disappears out of sight. Searching for it, they spot a silver ball hovering in the sky. Small fetches it in the Music Boat and decides to play catch with it. But disaster strikes, and Small accidentally throws the ball through one of the holes inside the planet.

Major is in his workshop when he hears a ringing sound, which sounds a bit like a bell. He tells Tiny and Small and they're puzzled - they didn't hear the ball make a sound like a bell. To the amazement of all of them it bounces off him, glowing and making a ringing sound! They show Mother but she advises them to be kind and not throw the ball around. Will they be kind to the ball or ignore Mother's suggestions and pay the consequences?