Chivalrous Bart saves the life of a beautiful woman. His reward? A place on the wanted list for robbery and murder.

The Fenians, an Irish Revolutionary Brotherhood, are trained soldiers sworn to free Ireland from British rule. The Fenians have gathered in Dakota City to plan a march into Canada where they want to take hold of a small part of British property hostage in exchange for Ireland's freedom. After England pressures the United States to intervene, Beau Maverick is blackmailed into infiltrating the Fenians ranks by a shrewd Army colonel.

Outside Denver, Colorado, Beau and his friend, Judge Scott, find shelter during a blizzard at the home of Martha Flood and her niece Sally. Martha and the judge are plotting to institutionalize Sally in order to take over her inheritance. However, Martha's lover, a professional killer named Chet Whitehead plans to kill Sally, the judge, and Maverick.

Bart tries to track down Pearly Gates, a smooth con man who cheated him out of $5000.

Bart forsakes the poker table for the stock market — and finds himself trying to bluff wealthy Loftus Jaggers and his glamorous daughter (Paula Raymond).

Bart, waiting to collect on a $10,000 IOU, makes an uncomfortable observation: murder may be the pay-off in a gambler's life.

Crusading newspaper publisher Bart? The publisher Bart won the rag from is assassinated and a corrupt U.S. Senator files a $100,000 libel suit against the Chronicle. Luckily, Bart's pal Doc Holiday is in town for a dentists' convention and owes Bart $2000. When Doc brags "I have enough collateral to raise the dead!", Bart feels no compunction in selling ½ the headache to Doc. The senator and his sinister political boss are Ivy Leaguers, so the suave Philadelphia dentist/hired gun will come in handy.