The team is grieving Carter's murder and Reese's serious wounding by Officer Patrick Simmons, who is on the run and wanted by the authorities. He is also being hunted by the Russians, who now feel betrayed by HR. Reese, who should be in the hospital and who may die if he doesn't receive proper medical attention, and Shaw decide to go rogue and go after Simmons individually through whichever HR members are still out there. Finch and Fusco are able to locate Shaw, who knows that they will not be able to do the same with Reese. The only person who may know where Simmons is is Quinn, who is being held in FBI custody at an unknown location. Shaw knows that there is one person who may be able to locate Reese through Quinn: Root. Finch has to decide if he can trust Root in order to save Reese. Others on the team may have their own ideas of how best to find Reese, and deal with both Quinn and Simmons if they can be located.