Carys wants to find out all about jellyfish in today's episode. Chantelle visits an aquarium which is home to some rather special jellyfish, whilst Rory meets a marine expert and they head out to sea on a glass-bottomed boat Chantelle and Rory's fact files help answer all of Carys's questions. With the help of the Teeny Tiny Creatures poem we discover that, like lots of other teeny tiny creatures, jellyfish are superheroes and help our planet in their own special way. In the Teeny Tiny Task, Chantelle and the children pretend to be jellyfish with colourful ribbons.