Kampen om tungtvannet : Season 1 Episode 1

During the second world war, Nobel price winner Werner Heisenberg is the head of the Nazis atomic bomb project. Heisenberg needs heavy water for the reactor he is building, only produced by Norsk Hydro at Vemork. The creator of the heavy water factory, scientist and resistance fighter Leif Tronstad, becomes sucpicious of the German purchase of heavy water and contacts British intelligence.