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
Johnny Munroe
Laraine Day
Maura Alexander Munroe
Cedric Hardwicke
Frederick Alexander (as Sir Cedric Hardwicke)v
Judith Anderson
Miss Ellen Braithwaite
Anthony Quinn
Ricky Vegas
James Gleason
Pop Mathews
Grant Withers
Fog
Paul Fix
Joe
