McCall receives a desperate plea for help, that leads her into a confrontation with Mason Quinn, an enemy from her past in intelligence; in need of confidential information, McCall forms a tentative alliance with a by-the-book CIA handler.
Max journeys to Connecticut to bring Luna back to New York, but second-guesses his instincts when he sees her with her grandparents. Bloom takes action to ensure her staff feel safe at work while Reynolds takes a backseat in the cardiac unit. Sharpe struggles to lean on Dr. Cassian Shin (Daniel Dae Kim) while dealing with a family emergency.
