Looking for a treasure, the Vikings enter a tunnel system full of traps. Even with Vic's clever ideas, they soon get lost in the tunnel, right before escaping death when a large rock ball rolls towards them. Soon after, they think they found the way to the treasure room, only to be caught in a maze. But the biggest trap of all is the one protecting the treasure room itself, and Vic will need Ulme's musical talents to get them all out of trouble, with the treasure.