It's 1927, the year Babe Ruth clouts an unprecedented 60 homeruns. Over in the National League, Joe Rath has just lost his spot as starting catcher for the Baltimore Beacons. The team's front office believes their club, too, needs a bona fide slugger, one they've found in their new backstop, Frank Walsh. Determined to prove his worth to the Beacons, as well as to his dissatisfied young wife, Rath boards a team train bound for Chicago. Little does he know, a spontaneous visit to a speakeasy in The Windy City will land him in a world of ruthless gangsters and in the arms of a ravishing young singer.