Squacky's been growing up in a lot of ways and tonight's an important night for him - his first time sleeping at night without a diaper. He's excited about being a big duck, excited enough to do his Squacky Dance. That night, though, before bed, he drinks a big glass of water, but doesn't want to get out of bed when he has to use the potty. Late at night, he wets the bed. His fellow Pajanimals help him to get clean and dry, but he feels sad and ashamed. They all travel to the Moon, who helps him to feel less ashamed, and gives him some tips to prevent it from happening again.