Criminal Minds - Season 12 (2016)

The BAU team searches for a serial killer along the Appalachian Trail in rural Virginia.

The BAU investigates the case of two murdered families where the oldest siblings are the sole survivors.

When three children disappear while riding their bikes on the same path as a similar unsolved disappearance 30 years ago, the BAU team comes in to investigate.

The BAU opens an investigation when a man arrives in town believing he's the brother of Dr. Tara Lewis.

The team heads to Yakima, Washington when the remains of a dozen people are found along a creek bed.

While Rossi conducts a profiling course on his birthday, he receives a call from his nemesis Tommy Yates, who discloses the location of his latest victim.

The team investigates a series of home invasions in San Diego involving casualties.

Reid has returned from Houston, where he was visiting his mother who is in a new facility on an experimental drug program. He is called back home from the office while the rest of the team heads off on their next case. It isn't until the team is in the air that they learn that Diana is no longer in the Houston facility, but that she is now living with Reid, as the trial drug was not having the intended effect. Reid had received professional advice that his mother should be in a facility both for her and his own good, but it may be news from a more caring rather than ...

The BAU investigates the case of male victims found with no way to identify them.

When a member of the BAU gets in trouble in Mexico, they enlist the help of the International Response Team.

The BAU investigates a series of pedestrian deaths while a teammate's fate remains uncertain.

A series of acid attacks draw the BAU to Philadelphia, while Reid adjusts to a new reality.

A mother comes forward with information to help the BAU in their investigation of an unsub called the Bone Crusher.

The BAU suspects that two unsubs are operating at the same time when victims killed in different ways are found in the same city.

The BAU investigates an urban vampire who kidnaps his victims at night and holds them underground in the sewer system; Reid makes a difficult decision in prison.

Three victims are found tied to stakes in the Arizona desert.

The BAU investigates when several federal government employees, including a close friend of Walker's, succumb to symptoms of a heart attack; Reid anxiously awaits his trial date.

When Reid fears his mother has been abducted, he asks the BAU to investigate while he's stuck in prison.

Derek Morgan brings the BAU a lead in the case against serial killer and escaped convict Mr. Scratch.