Barbara Stanwyk and Joel McCrea Star in Director Cecil B. Demilles Explosive Western, Union Pacific, About the Struggle to Build Americas First Transcontinental Railroad. Jeff Butler (McCrea), Overseer of the Union Pacifics Construction, Finds a Network of Schemers Bent on Sabotage. Most Prominent Are Gamblers Sid Campeau (Brian Donlevy), Jack Cordray (Anthony Quinn) and Dick Allen (Robert Preston). Dick Is a Former Pal of Jeffs, But Their Relationship Changes As They Fight Over the Railroad and Over Mollie Monahan (Stanwyck), the Railroads Spirited Postmistress. Filled with Political Intrigue Stampeding Buffalo, Train Wrecks and Attacking Indians, This Action-Packed Spectacle Delivers Everything You Would Expect from a Cecil B. Demille Epic.