Sam, Pam, Will, and Jill are four alligator friends who decide to have a beach day one hot, sunny, sweaty, summer day. Once on their bicycle built for four, the friends become distracted at the park, on a picnic, with a nap, until when they finally find their way to the beach the sun has gone down and everyone has gone home. But that doesn't stop Sam, Pam, Will, and Jill from having a cool swim under the light of the moon.