School's out for the summer and Leo and his best friend. Johnny are all set for non-stop fun -- epecially now that Leo knows he's getting promoted! But it seems people have lots of plans for them: Leo's more needs help around the house. Johnny's grandfather wants him to work in the garden, and Leo has to babysit his pesky little cousin, who won't let Leo alone for a second. Of course, Leo's mean sister, Eleanor, will be around all summer, too. This vacation might turn into a nightmare.