Watch Under Northern Lights (1920) Official Trailer

Douglas MacLeod of the Royal North West Mounted Police is in love with Suzanne Foucharde, who has adopted an abandoned Indian baby, the illegitimate child of Louis La Rocque and Na Fa Kowa. When La Rocque insinuates that the baby is Suzanne's, her brother Henry defends his sister's honor and kills the villain. In spite of his love for Suzanne, it is Douglas' duty to arrest Henry. He does so, but later allows him to escape, taking the bullet himself that was fired after Henry by Constable Burke.