Assassination, espionage, war, and vigilante violence.

Welcome to Chicago in 1917.

Within this cauldron of intrigue and deceit, live nearly half a million Irish and German American immigrants, among them Irish-born lawyer Conor Dolan and his wife Maureen. The Dolans are among thousands of immigrants marked as "hyphenated Americans," their reluctance to support the war cry branding them "enemy aliens."

When one of the legendary Chicago Newsboys takes a lethal bullet from a German Luger during a warehouse break-in, his mysterious companion escapes, and Conor is determined to find the killer. He discovers instead a link between the burglary and the murder of a prominent Chicago arms broker with ties to the Allied powers and possibly the mob. Despite warnings from a powerful group of government-backed vigilantes and a suspicious lack of cooperation from the police, Conor presses on at his own peril to root out the boy's killer.

Was it a German agent? An Allied agent? The mob? Or maybe even the police themselves by some deceitful plan? The closer he gets to the answer, the greater the danger to those he loves.