Engineer Johnny Munroe is enlisted to build a railroad tunnel through a mountain to reach mines. His task is complicated, and his ethics are compromised, when he falls in love with his boss's daughter
John Wayne
as Johnny Munroe
Laraine Day
as Maura Alexander Munroe
Cedric Hardwicke
as Frederick Alexander (as Sir Cedric Hardwicke)v
Judith Anderson
as Miss Ellen Braithwaite
Anthony Quinn
as Ricky Vegas
James Gleason
as Pop Mathews
Grant Withers
as Fog
Paul Fix
as Joe
Fernando Alvarado
as Chico
Harry Woods
as Holden
Michael Harvey
as Curly
Charles Trowbridge
as Señor Tobar
