When Buzz and Ellen find a baby alien in their backyard, they adopt her and name her Polly. Although she appears human, she has purple hair and electric hands. She also has delayed development, screams whenever she hears loud noises, and unintentionally shocks cats. Afraid of how the world would react to her, her parents kept her in their backyard shed for fifteen years. It isn’t until a boy named Daryl stumbles upon the backyard that Polly really starts to feel a connection with the outside world through music and The Wizard of Oz. What will become of Polly and Daryl’s friendship? Will Ellen ever accept Polly as her daughter? And where exactly is Polly from?