Ndola, Northern Rhodesia (currently Zambia), September 18, 1961. Swedish economist and diplomat Dag Hammarskjöld, Secretary General of the UN, dies mysteriously in a plane crash. Decades later, Danish journalist and filmmaker Mads Brügger and Swedish researcher Göran Björkdahl investigate the case in search of definitive closure.

Ndola, Northern Rhodesia (currently Zambia), September 18, 1961. Swedish economist and diplomat Dag Hammarskjöld, Secretary General of the UN, dies mysteriously in a plane crash. Decades later, Danish journalist and filmmaker Mads Brügger and Swedish researcher Göran Björkdahl investigate the case in search of definitive closure.