Ramona the Bowling Ball is pretty good at her job, sailing down the lanes and knocking all those pins over. But she's curious and wants to see the rest of the world, so she hops the rails and sails out the door, eager to see the city. It's fun at first, but as night falls, Ramona's on a race against time to return to the bowling alley before closing time, or else she'll be trapped outside forever.