Maxine is rapidly learning the rhythm of 1920s Chicago: a dangerous beat of jazz, gunfire, and relentless ambition. Having miraculously escaped a mind-bending interdimensional trip, she's now trying to survive in a world of flappers, gangsters, and Model T Fords. But blending in isn't her style, and her quick wit and future-tech knowledge quickly catch the attention of the city's undisputed king: Al Capone.

Summoned to Capone's opulent, tiger-caged office, Max must prove her worth to the notorious mob boss and his cutthroat lieutenants. Her insights into "radio" and "film" astound them, solidifying her place as Capone’s new, indispensable "lucky charm"—much to the chagrin of the suspicious Frank Nitti. But survival in this era is a constant gamble, and Max finds herself deep in the dangerous world of gang wars and federal raids.

When an intercepted plot threatens Capone's life, Max is thrust into the heart of a brutal ambush, dodging bullets and outsmarting hitmen. Her quick thinking saves the boss, earning her a chilling new title: "family." With Capone's trust—and a dangerous, coded puzzle from his private vault—Max gains unprecedented access. But as the Feds close in and rival gangs circle, she realizes she's bought herself a ticket to the center of a storm.

Can Max survive the escalating violence of Prohibition-era Chicago, decode the secrets of her unexpected journey, and unravel the mysteries connecting her to this bewildering new reality, all while staying one step ahead of a very powerful, very possessive gangster?