Miles Murphy had it made. He lived in a great town near the ocean, he had two best friends, and, most importantly, he had a reputation for being his town's best prankster. All of which explains why he's not happy to be moving to Yawnee Valley, a sleepy town that's famous for one thing and one thing only: cows. Worse than that, Miles quickly discovers that Yawnee Valley already has a prankster, and a great one. If Miles is going to take the title from this mystery kid, he is going to have to raise his game.