Stop-frame animation. Nestling in gently rolling hills is Timmy's nursery school, cosily housed in some old farm buildings. Complete with messy play area, story corner and garden, this is the perfect place for a young lamb to start finding his place in the world. Timmy finds an old mop head and is convinced that it is a little animal, which he adopts as his pet. He strokes it, feeds it and teaches it tricks, not in the least bit worried by its lack of response. His classmates don't know what to make of this, until Timmy's pet starts to move on its own.