About the Siemens Geheimschreiber - G printer - a crypto machine that Hitler's engineers designed in the 30's. The mathematician Arne Beurling at Uppsala University revealed the secrets of the G printer and gave the Swedish government and the Military direct insight into the secret German telegram traffic during World War II. Based on material in FRA's archives, Olle Häger and Crypto Specialist Bengt Beckman portray the dramatic game around the G printer.
—Ulf Kjell Gür