Dangerous Nan McGrew is the sharp-shooting expert of a traveling medicine show that is stranded in the Canadian northwest at the snowbound hunting lodge of wealthy Mrs. Benson. Nan is invited to put on a show for the benefit of Mrs. Benson's Christmas-Eve guests. While performing her boop-a-doop songs, Eustace Macy, the saxophone-tooting nephew of Mrs. Benson falls in love with Nan. And, then, the villain, the bank-robbing Doc Foster, makes his entrance. Can Dawes of the Royal Mounted be seen slushing in pursuit behind the gangster? Could Be.

Captain Maurice de Florimont, a French Army intelligence officer, is captured by Arab nationalists while on an espionage mission. His sweetheart Diane Duval is also taken prisoner. Both are tortured by Kassim Ben Ali, leader of the Arab nationalists, but they refuse to divulge any information. They are finally rescued by French troops who storm the fortress and kill Kassim.