The winter fortress

The Winter Fortress tells the story of a group of Norwegian commandos who, with the aid of British special operations, embarked on a perilous mission to sabotage the Nazi atomic bomb program by targeting the Vemork plant in Norway, the sole supplier of heavy water.

The book is based on exhaustive research, including top-secret documents and personal diaries of the saboteurs, and recounts their bravery and survival in one of the most inhospitable environments during World War II.