The Wubbulous World of Dr. Seuss

The Mystery of Winna-bago Falls (1x9)

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When Jane Kangaroo insists that the citizens of Lake Winna-Bango cease sliding around on Fruzzle-Floom Fruit peels and instead discard them, the mighty waterfall mysteriously stops falling. It's up to our hero, Thidwick the Big-Hearted Moose, to piece together the ecological chain and restore the water source.