After the German invasion of 1940, the Norwegian government fled to London, leaving the country in the hands of the collaborator Quisling. However, Norway's resistance movement soon became the most effective in all Nazi-occupied Europe - ordinary people everywhere risked their lives to work with the British SOE, participating through intelligence gathering, sabotage, raids, espionage and escort for citizens fleeing the border to neutral Sweden. The most successful act of sabotage in WWII was Operation Gunnerside, the disabling of the heavy-water plant in Vemork. Working alone or with the help of the S.O.E., Norwegian men and women refused to roll over and proved invaluable in bringing an end to Nazi domination across Europe. Includes interviews with surviving veterans, as well rare archive footage.