Trapper Clark Manning becomes the unwitting victim of Ross
Montgomery and his wife Myrna when Montgomery, a criminal posing
as a mining engineer, introduces Myrna to Clark as his sister.
After winning Clark's confidence through Myrna, Montgomery asks
the trapper to deliver a shipment of furs. Unknown to Clark, the
furs are stolen, and the Mounties arrest him as part of the fur
Rather than implicate Myrna in the crime, Clark
remains silent and is sentenced to jail. Constable "Bones" Blair,
Clark's Mountie friend, knows that the trapper is innocent, and
decides to investigate for himself. Meanwhile, Clark escapes from
jail, and while searching Montgomery's office, he finds proof of
Montgomery's and Myrna's duplicity just as he walks in, and in the
ensuing fight, Clark escapes into the night.
his henchman, Biff Anders, to kill Luther St. Paul, a trapper who
has become suspicious of him, and frame Clark for the murder.
Montgomery's frame-up works, and he then uses the fugitive Clark
as a cover to kill more trappers and steal their furs. Sighted by
the Mounties at St. Paul's cabin, Clark seeks refuge in Biff's
mine shaft, where he begins to suspect that Biff is in league with
Montgomery. Clark confides his supicions to Bones, and then
returns to the mine to gather further evidence.
That night, Bones
overhears Biff and Montgomery planning another theft and Clark's
murder, and he promptly leads Captain Owens and the Mounties to
the mine, arriving just in time to rescue Clark and apprehend
Montgomery and his gang. Having learned his lesson about women,
Clark falls in love with Bones's sister Doris (Anne Gwynne).