Based on

Movies like Trailing Trouble (1937)

When mild mannered Friendly Fields is sent to the Blair ranch to work, he is mistaken for the notorious outlaw Blackie Burke. When a drought develops and the ranchers look for new grazing land, he plays the part and forces them to give he best plot to his boss Miss Blair. But no sooner than his mother arrives to expose the hoax, the real Blackie also arrives.