After bonding with a young patient, Shaun suspects that he’s been misdiagnosed with a fatal form of brain cancer. An elderly patient’s allergic reaction exposes a longstanding rift with his son.
The BAU is called to Alabama when young women are being abducted by what appears to be a family working together.
The investigation into the death of a surfer reunites Lisbon with her former fiancé. Cho is beginning to question why he's with Summer.
Lightman and Torres interrogate an imprisoned gang leader who claims to be rehabilitated. If the gang leader is freed, he might help fight inner-city violence or return to his life of crime. Foster and Loker investigate the death of a firefighter who was killed in the line of duty.
When a deep sea diver is murdered on the job, his body and suspected co-workers must remain in a high-tech decompression chamber for four days, leaving the NCIS team to complete an unorthodox investigation from outside the tank.
