In 1961, United Nations secretary general Dag Hammarskjöld’s plane mysteriously crashed, killing Hammarskjöld and most of the crew. More than 50 years later, the case remains unsolved. Danish journalist, filmmaker, and provocateur Mads Brügger leads us down an investigative rabbit hole to unearth the truth. Scores of false starts, dead ends, and elusive interviews later, Brügger and his sidekick, Göran Björkdahl, begin to sniff out something more monumental than anything they’d initially imagined. In his signature agitprop style, Brügger becomes both filmmaker and subject, challenging the very nature of truth by “performing” the role of truth seeker.