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.
Ralph Lewis
as 'Jovial Joe' Ryan
Jean Arthur
as Grace Ryan
Hugh Allan
as Jack Milford
George Chesebro
as Bert Steele
Sidney Franklin
as 'Roadhouse' Rosen
Leon Holmes
as 'Unhandy' Andy
Missouri Royer
as Jim Brennan