Mac and Riley are attacked by a group of masked men after the government calls them in to examine a mysterious object that crash-landed in the Nevada desert. Also, Riley…

Dexter shows up at his 20th high-school reunion with the intention of confronting the former prom king. Elsewhere, an investigation into a heinous murder with religious overtones leads Dexter to…

When home invasions involve the murder of entire families, the BAU is called to Denver to identify the killers who possibly have been abused while in foster care.

The BAU travels to Portland to assist local authorities in investigating the disappearances of people who are new to the city and have no strong social ties.

The BAU travels to Portland to assist local authorities in investigating the disappearances of people who are new to the city and have no strong social ties.

When home invasions involve the murder of entire families, the BAU is called to Denver to identify the killers who possibly have been abused while in foster care.