Forever Seven [Für immer Sieben]

Mouse doesn't have any idea what treasure awaits him when he stumbles across an abandoned box on Monday morning. It is then Croc who makes it his own. Then there are Moggy, Dachshund, Frog, Snail and Porker who get possession of it as well - only to find that the box cannot be possessed, or at least not in the way they thought.