After the end of the US Civil War, former Confederate soldier Britt Canfield gets a job building the Santa Fe railroad. He's good at his job and soon finds himself the number two man. His urges his three brothers - Terry, Tom and Clint - to join him, but they still can't quite accept that the South was defeated. Britt also meets the very attractive Judith Chandler whose husband was killed while serving in the Union army. When his brothers take to robbing trains, Britt finds himself opposing them.