Camer the Dragon has an opportunity he cannot ignore: the supermarket is running an exceptional sale on cola, which he loves. Also on bananas, which he also loves. Entering the store with a trolley and unlimited enthusiasm, Camer starts putting anything he finds interesting into the cart. The problem emerges when the trolley fills with items that are not cola. If it gets too crowded, Camer must stop where he is, surrender the extra contents, and take only the cola he collected up to that point.