Montana Marshals Gene and Scat are tracking some bank robbers. When the baddies cross into Canada, the Mounties are called upon to help.

When Steve Downey arrives to reopen his brother-in-law's gold mine, he finds a war between the ranchers and the miners. Ashton has had the water poisoned killing cattle. When Ashton's men find Steve's hat, they kill Tom Tavish and frame Steve for the murder. Escaping jail the Durango Kid goes into action.

A fingerprint expert figures out who killed the mayor.