The Great Locomotive Chase

It's the Civil War, and Union spy James J. Andrews (Fess Parker) is on a top-secret mission: to steal a Confederate train outside of Atlanta and take it back to Union territory in Tennessee, using it to sabotage and destroy Confederate supply routes along the way. But the train's conductor (Jeffrey Hunter) is on to Andrews and is determined to try his best to throw a wrench in the Union spy's plans before he delivers the train to his fellow soldiers.