S3, E8: Benjamin and Otto find and old bottle containing a mysterious map. They read that the Emperor Kuno The Content had hidden treasure near the town of Urbs Nova. The pair decides to hunt for it. They want to use it to help the Director because the zoo desperately needs a new enclosure for the penguin family. Benjamin and Otto find out where Urbs Nova is. But then someone steals their map. Somebody else is after the treasure and an exciting race against time begins.