Boxed In – A young boy disappears in San Diego on Halloween, just as another boy who vanished one year earlier suddenly reappears.
The Itch -When a body is discovered in Atlanta covered in scratches, the BAU finds that this death and subsequent murders could be linked to an UnSub with an obsessive skin disorder.
A Thousand Suns – The BAU team investigate the crash of a passenger jet in Colorado and build a profile around the suspicious circumstances. Meanwhile, the case reminds Kate of a family tragedy.
Burn – A series of abductions and murders in Seattle are investigated. The suspect is believed to be seeking revenge for having been abused in the past. Meanwhile, Garcia travels to Texas to confront the man she shot while defending Reid and herself, as the condemned man waits on death row.
X – Season 10 begins with the BAU team investigating a series of murders in Bakersfield, Cal., in which the victims are unidentifiable. Meanwhile, new agent Kate Callahan joins the team.
Demons – Conclusion. Season 9 ends with the BAU continuing to investigate the murders of prostitutes in Texas and uncovering a deep web of corruption that could be the motive behind the killings. Meanwhile, one team member faces a sad secret from the past; and Garcia is forced into action to save a colleague.
Angels – Part 1 of 2. Prostitutes are murdered in Texas and the investigation suggests the killings have religious overtones. But as the BAU delve further into the case, their lives are put at risk.
Fatal – Victims of arsenic poisoning are found in Long Beach. The investigation reveals that the killer has a fascination with Greek mythology, based on handwritten death threats to the deceased and other mysterious clues. Meanwhile, Hotch becomes concerned about participating in Jack’s third-grade career day.
What Happens in Mecklinburg… – The BAU investigates a series of kidnappings near Memphis. Meanwhile, Savannah vents her frustration to Morgan about the amount of traveling he is doing for his job.
Blood Relations – Two murder victims are found in a West Virginia backwoods community. The investigation reveals that the homicides may be linked to a long-simmering feud between two families.