In the heart of Chicago, where the thrill of the chase collides with shadows, Gianna Corleone walks the line between justice and darkness as a confidential informant for the Chicago Intelligence Unit. Formerly belonging to a powerful Sicilian mafia family, Gianna left the life of crime behind to navigate to chase justice. Her past echoes in the whispers of wealth and a thirst for action that keeps her on the edge.
Thriving on the adrenaline of undercover work, Gianna's trust issues and haunted past are softened by the protective embrace of the Intelligence Unit. Her father's friendship with Hank Voight, the head of the unit, cements her place in their family. As Gianna becomes a crucial informant for Detective Jay Halstead, the team's protectiveness grows, turning her from a mere informant into a cherished member.
When the FBI collaborates with the Chicago Intelligence Unit on a complex case, Gianna's path intertwines with Dr. Spencer Reid, a brilliant profiler. The city holds its breath as their connection unfolds, and Gianna must confront her past to let Spencer into her guarded heart.