Milly and Molly remember their first day at school. It's a wonder they ever became friends; they seem to be so different. Indeed, by the end of the day it's hard to believe that they could ever become best friends. But thanks to their shared feelings for their cats, they soon find that they have much more in common.

Aunt Maude breaks her leg and Milly and Molly offer to look after her precious, award-winning vegetable garden.

Milly persuades Molly to take a hot-air balloon over the mountain to see what is on the other side.

Milly and Molly's teacher is sad when her pet budgie dies. The girls buy her a new one, but the fun-loving bird they choose goes quiet as soon as they leave the Petshop. They can't understand what's wrong with the little fellow, until finally Milly and Molly return to the shop. The girls discover they have unwittingly separated the budgie from his mate; reunited, the birds are happy again.

When Alf joins Milly and Molly's school, he seems different from the other children. He likes different things and is proud of his difference. Unfortunately, Milly and Molly find it difficult to be friends with him, they don't seem to have anything in common.

Milly and Molly take old Mr Limpy's dog, Taffy Bogle, for a walk, but he must be back before tea.