When Chicago detective Leo Vargas catches a murder case in a seedy alley, he never expects the victim to be his estranged father's loyal lawyer—or for the evidence to point back to his own notorious crime family. Forced to confront the father he abandoned decades ago, Leo uncovers a sixty-year-old secret involving a stolen ledger, a Sicilian blood feud, and a powerful U.S. official with everything to hide. As two families prepare for war, Leo must decide: is he a Vargas by blood, or the man he chose to become?
