When it's dark and it's raining, you never know what might happen! A single raindrop could be the beginning of something scary, fun, and way out of control, all at the same time. The kids are getting ready for bed when-what do they see? A very small person inside a raindrop, Sogger! He looks cute so they let him in the window, but then, he jumps around, and suddenly, the whole house is topsy-turvy, upside down, and soaking wet! How will they get everything back to normal before their parents come home?