The story behind Hitler's plan of Germany getting the atomic bomb during WW2, and the heavy water sabotages in Rjukan, Norway, seen from four angles, the German side, the allied, the saboteurs and the company side.

A young girl playing by "Djupelv" finds the remains of a body. The family doesn't want to get involved and calls in an anonymous tip, but the same day the girl runs away from home.