Missouri Royer

When the Government incorporates Bill Hayden's ranch into a Federal game preserve, Jack McCabe, a forest ranger, is sent to serve an eviction notice on Hayden and his daughter, Shasta. Hayden resists the order, and Jack falls in love with Shasta.

Joe Ryan, a veteran train engineer, is demoted to a flagman position after a disastrous crash-- one caused by his cowardly and opportunistic partner. Though Ryan's failing eyesight is named as the cause of the crash, he's undeterred as he designs an automatic braking invention.