The story is great, drawing a lot on the popularity of the (in)famous Da Vinci Code by Dan Brown. Apparently the Knights Templar were in Denmark, on the holiday island of Bornholm - and apparently they hid something there. The unique churches on Bornholm do for this movie what Rosslin etc did for the Da Vinci Code. Most of the premises for the story are based on scientific research and that wonderful "what if?" question.
It is without a doubt a kids movie, with four kids as main characters. But the story can easily be watched, and enjoyed, by adults as well.
7/10 - Great story, nice acting and an extra grade for revitalizing the Danish youth movie "scene". Thanks to Tempelriddernes Skat, we're now getting a few more intelligent Danish kids movies coming out (De Fortabte Sjæles Ø and Tempelriddernes Skat 2).