The son of the Comtesse de Brévannes dies. She, who has never wanted to meet her daughter-in-law and who wants to take care of her grandson, goes to their house under the guise of a governess.
Convicted killer Jim Holden is rescued from the sheriff by his gang, led by Mason and Riley. He is out to get the Hathaway Stage superintendent George Bannister, who was responsible for his conviction and learns the Bannister, his niece (Kay) and Hal Hathaway, son of the stage line owner, are on a cross-country stage.
Maggi continues her forever-ever efforts to crash Manhattan's top society, while Jiggs still mingles with his old construction cronies at the bar of Dinty Moore on 10th Avenue.
Stevie Carson, a newspaper reporter, and Danny Butler, the "morgue" manager on the same newspaper, set out to track down the killer of a colleague, a book-reviewer who was involved with a group of rare book forgers and whose sister has been convinced her editor-fiance, Bill Monroe, killed him.