A factual reconstruction of the sabotage events which took place to prevent Hitler's Germany from getting the heavy water needed to make an atomic bomb during the Second World War.
Frédéric Joliot-Curie
as Self - Professor
Raoul Dautry
as Self - Rustningsminister
Henki Kolstad
as Sersjant Einar Skinnarland
Johannes Eckhoff
as Fenrik Knut Hauglund
Claus Wiese
as Fenrik Joachim Rønneberg
Øyvind Øyen
as Major Professor Leif Tronstad
Andreas Aabel
as Fenrik Kasper Idland
Odd Rohde
as Sersjant Birger Strømsheim
Rolf Sørlie
as Self - Ingeniør
Torstein Skinnarland
as Self - Damvokter
Lew Kowarski
as Self - Laboratoriesjef
H.H. Halban
as Self - Professor