The CBI team investigates when the body of a female army medic who worked with soldiers with PTSD is found near a military base.

Jane discovers an important clue to Red John's methods as the team encounters four of the suspects, and the CBI investigates the case of a software engineer killed by a drone strike.

The FBI reluctantly enlists Jane’s help to find a missing computer programmer, but he won’t help unless Lisbon is brought on board as well.