Roy Rogers takes on crooked wartime profiteers in the musical western Ridin' Down the Canyon. Posing as solid citizens, the crooks spend their evening hours stealing horses from local ranchers, then selling the steeds to the government at exorbitant prices. The head of the bad guys runs a dude ranch where Rogers and his pals (The Sons of the Pioneers) are employed.

A framed reporter and the crooks on his trail scramble to locate a book containing the names of American war profiteers and traitors who collaborated with the Nazis during the war.

Spring 1945, Heinrich Zwygart, Swiss ambassador to Germany flees bombed-out Berlin after eight years of service in the capital of the Reich. This is the end of a terrible mandate, during which he had to make fatal compromises to preserve the neutrality and security of his country. He went through the war, but will he survive the peace?