Walter and Winnie the Water Voles are bored. There's nothing to do at the Tropical Pond. Walter reckons he can get to the Hidden Lake and back by lunchtime. When he doesn't return, Winnie is worried and heads off to find him. Jago the Robin and Simon the Stickleback are on hand to help, but they can't find him anywhere. Where is Walter?

Originally released by BBC Worldwide Learning, 2021. Streaming video file encoded with permission for digital streaming by Infobase on January 18, 2022.