The Skin I'm In: Nick and Sally are playing super heroes when Nick cuts his finger. He wishes he had skin like a super hero. Oh but you do, says The Cat! And a visit to Dr. Giggles to learn all about how super skin is, is just the thing! By shrinking down really small, they discover teeny tiny hairs on our skin, how stretchy our skin is and slippery too! They even learn that old skin falls off and new skin grows. It even fixes itself when it's hurt! Skin really is super! Fishy Washy: Sally and Nick need to clean up the backyard. Cat has a friend who's an expert at cleaning, perhaps he can give them some tips! It's off to the ocean to meet this cleaner fish! They discover that Rufus doesn't clean the ocean, he cleans other fish! They watch as Rufus cleans one bit at a time, that's the trick! It's not so hard to clean up, especially when you have friends to help!