Every child dreams of their own cosy tree house. Sunny Bunnies were lucky to find a perfect tree house in the forest. But how can they get inside, when it's at the very top of a very tall tree?

The Sunny Bunnies come across an old cave. Is anyone there? A spooky echo is coming back. But it's not easy to scare the Bunnies. Will our friends discover the secrets of the old cave?