ION Mystery

The BAU team heads to Los Angeles in search of a suspect who kidnaps nannies and the children they care for.

The team tracks a suspect targeting people in Detroit; Blake receives a life-changing proposition from her husband (D.W. Moffett).

The team investigates a series of deaths in Manhattan that seem to be related to ecstasy overdoses; Hotch makes a discovery about his estranged brother.

When the Replicator returns, a member of the BAU team is targeted.

The team tracks an increasingly devolving killer to Arizona; the team suspects Hotch is in the running to be the unit chief.

As the hunt for a ritualistic killer continues, a bizarre familial connection could help the team zero in on the suspect.

The BAU team must determine if the anniversary of the Kennedy assassination is a motivating factor when a sniper strikes Dallas.

The BAU team meets the new section chief (Esai Morales), who shares a long history with J.J.; an unknown subject leaves victims unable to communicate.

The investigation into the murder of a neighborhood do-gooder reveals he was planning on exposing something big.

When the Miami Taunter strikes again, Horatio meets with the matriarch of the suspected killer's family.

Calliegh uncovers a personal connection to a case involving the near-death of a popular tennis coach.

Horatio uncovers a scandal that pits him against a former adversary; Calleigh faces a life-altering decision.

When an enemy of the CSIs is killed, Horatio looks to his team for a suspect.

The team searches for evidence and survivors after a jet crashes into the Everglades, trying to recreate what transpired on the fatal flight.

Horatio sets out on a personal mission to find his mentor's killer, and Megan worries that he has become too emotionally involved in the case.

Horatio and Megan examine the remains of a human torso found in a tiger shark's stomach. Wanda De Jesus guest stars.

A wealthy family uses their power and influence to distance themselves from a rape and murder investigation.

A priest is shot to death in his church rectory; Horatio and Delko examine the charred remain of a pregnant woman.

Horatio and the team investigate the murder of a 5-year-old girl in a restaurant washroom.

Evidence on a lost, blood-soaked toddler leads the CSI team to her home where each family member's spilled blood tells a tale of horror. Wanda De Jesus guest stars.

Booth becomes more determined to catch Jacob Broadsky after he takes out another victim.

Booth and Brennan go under cover to find out what happened to a man whose remains were found lodged in the pinsetter at a bowling lane.

A woman's remains are found in a paintball field; Booth and Brennan adjust to life as an expectant couple.

The team identifies the remains of a competitive-eating champion just days before a contest; a brilliant new squint has trouble fitting in; Booth and Brennan try to put themselves in each other's places after a disagreement about the baby.

Booth and Sweets are given access to a toy company's headquarters after an executive's remains are found packaged with a Prince Charming doll; Sweets prepares for his gun certification test; Brennan worries about motherhood.