Hammy finds a discarded bicycle wheel in the woods from which GP builds a unicycle. The high and wobbly vehicle runs away with him because he can't control it. Hammy and Martha take the balloon and rescue GP, who finally masters the giant wheel by talking nicely to it. All ends well as GP starts to build another invention with the wheel.
click here to see where to watch or .
Ready to Watch Once Upon A Hamster, Season 4, Episode 42?