Imagination is the seventeenth episode from Hi-5 Series 4.
- KATHLEEN pretends to be an opera singer.
- CHARLI pretends to be an opera singer too.
- KELLIE and Chats imagine to go to an aquarium and visit lots of fish.
- CHARLI pretends to be a fish.
- TIM finds a musical house with notes on the wall, spelling the word face.
- CHARLI pretends to be a musical note.
- NATHAN imagines to travel to the moon, and there he finds the moon boy (Tim) and they play craterball together.
- CHARLI plays football on the moon.
- SHARING STORIES: Kathleen tells us a story about two siblings (Kellie and Nathan) who travel to Zig Zag land by a seesaw, they meet Mr. Ziggy (Tim), who knows children's mother (Charli) because she travelled there a long time ago.