Jack Reacher delves into a poignant flashback, unveiling his deep connection with Lieutenant Dominique Kohl. The episode portrays Kohl as a promising protégé whose life was tragically cut short by the malevolent Xavier Quinn. This revelation intensifies Reacher's resolve to seek justice, highlighting Quinn's role as a formidable adversary. Simultaneously, DEA agent Susan Duffy confronts escalating threats, intertwining their fates in a high-stakes pursuit of vengeance.