The last thing Dillon Ford should have done was throw a tennis ball at a squirrel. He didn't mean to hit it. And he certainly didn't mean for it to fall out of the tree. But now the squirrels are after him--big-time. They have the house surrounded. They're on the roof, they're at every window, and they're even coming down the chimney. Dillon is a boy under siege, and one thing is for sure: the squirrels are pretty nutty!