The BAU is called to Oklahoma City to help local authorities track a serial killer who removes the eyes of his murder victims.
The members of Team Scorpion brave subzero temperatures in Antarctica to save a United States Special Forces unit; Toby risks his life to save Happy.
When Sam is shot by a spy contracted by the CIA, the team enlists the help of a Nepali soldier to help find the shooter. Kensi and Deeks have an argument.