Friends always manage, because they stick together, no matter what. Five friends are walking through the ancient Castle Balthasar, that is embedded in Europa-Park, one of the largest theme parks in the world. They enjoyed a fabulous day together filled with stunning rollercoaster rides, spectacular shows and lots of fun. While having a break at Balthasar Castle they step on a hidden trap door and are falling into the underground of the castle. Below the castle they get lost in a mysterious maze of forgotten dungeons. They are all alone but they know they can escape only…