Billy Broccoli is on a mission. If he can help Hoover Porterhouse--his very own personal ghost--learn to be responsible, Hoover may finally be able to move on...and Billy may finally get his room to himself! And Billy has come up with the perfect plan. He's going to get the Hoove a pet--a cute, cuddly one Hoover won't be able to resist caring for.
But it turns out Hoover is not exactly an animal enthusiast. Hoover swears that the adorable-but-slightly-superior cat Billy brings home has a serious attitude problem. He thinks dogs are dull, hamsters are cheesy, and parakeets are for the birds. And all because he has his heart set on a goat that would destroy everything! With all of these pets on parade, Billy's room has become.