Everybody's favorite Wombat is back, and he's desperate to cool down! Winston wants to play outside, but it's SO hot. Luckily, his mom comes up with a great idea: They can play in the sprinklers! Together they jump and laugh and play in the cool water under a hot summer sun, and then things get even better. There's a rainbow! Right there in the mist. But where did it come from?
With the help of his mom, Winston learns why rainbows appear when...