Spencer calls in to tell Miss Hoolie that Tommy Mackenzie's mother has a newborn baby girl. Spencer goes to buy a present from Pocket and Sweet's. He gets caught playing with things on the shelves and ends up buying everything but a present for the new baby. Archie has a great idea. With the children, he makes a beautiful mobile from old coat hangers, string and painted paper plates. Spencer hangs the mobile over Tommy's new baby sister's cot. She seems to love her first present.
