Milo is upset when his paper plane is taken away in the dustcart, meanwhile Fizz and Bella learn about recycling.

Judy shows the Tweenies a sepia photo of her great-grandmother. Fascinated, they decide to dress as old-fashioned people and have Judy take pictures of them. Then they take a trip back in time and experience a carriage ride, with Doodles as the horse.

Bella tries to get the others to join her square club. She makes square badges for them, then she organises a square brick-building contest. But Milo doesn't follow the rules of the game.