A documentary crew visits the hospital six months after the shooting to document the road to recovery for doctors and patients; Meredith helps Cristina put on a brave face for the cameras.
The BAU team face one of their toughest cases yet ,when a prolific, border-crossing serial killer leads them on a hunt into Canada.
During a camping trip with his wife and his best friend, a Marine falls off a cliff, recording the death on video. Abby puts her technical skills to test as she tries to reconstruct the camera.
A maths genius is recruited by the FBI to solve complex criminal cases. When a serial rapist turns to murder, Charlie employs an equation to identify the killer's next move.
Patrick gets to know a group of young surfers to learn who killed a woman in their social circle after she washes up on Santa Marta Beach.