Challenge to Be Free aka Mad Trapper of the Yukon and Mad Trapper is a 1972 drama film directed by Tay Garnett and stars Mike Mazurki. Challenge to be Free was a fictionalized account of the 1931 Royal Canadian Mounted Police RCMP pursuit of a trapper named Albert Johnson, the reputed Mad Trapper of Rat River.
In Alaska, Trapper Mike Mazurki attempts to live in harmony with nature but is aware that other trappers are using inhumane traps. When he is confronted by rival trappers over his interference with their trap lines, they bring along Sargent Fritz Ford the local police officer. Feeling intimidated, Trapper fights back, shooting his way out of his cabin and embarking on a desperate attempt to escape the authorities.Challenge to Be Free was filmed mainly on location in Alaska, as the locale of the Mad Trapper manhunt was changed from the Yukon to the United States. As an American production, Johnsons character was changed to, simply, the Trapper. The theme song, Trapper Man was featured. It was filmed and originally released as The Mad Trapper of the Yukon in 1972, but was later rereleased in 1975 to a wider audience. ........
Source: Wikipedia