A young American hustler in Las Vegas spots a rich English Lady. Smitten, he pursues her to England, where his only chance of getting together with her is to enroll in Oxford and join the rowing team.

At the end of the Civil War, Frank and Jesse James and other former guerillas who rode with Quantrill and Bill Anderson take the oath of allegiance to the Union. Feeling oppressed by Chicago railroad investors, the James and Younger brothers, Bob and Charlie Ford, Clell Miller and Arch Clements take to robbing banks, trains and coaches, with Pinkerton sworn to bringing them to justice.