Brennan and Booth investigate when a skull and other skeletal remains are found in a nationally protected wooded preserve Brennan's recently acquitted father (Ryan O'Neal) finds a job as a teacher.
While en route to China to identify prehistoric anthropological remains, Booth and Brennan are called upon to solve a murder in midair when the flight attendant discovers a fully cooked human body in the plane's microwave.
Horatio looks into Delko's past when a shooter targets the motel where Delko is staying.
Horatio steps in to prevent a police officer from getting too close to the case when a savage killer runs rampant in Miami.
A sadistic crime ring takes advantage of high gas prices when fuel becomes so pricey that citizens of Miami begin killing for it.
In its effort to determine who shot Horatio Caine, the team discovers evidence that leads to some of the most-dangerous people in Miami and to one of its own.
Horatio puts his life on the line when someone tries to take down the team.
Horatio confronts a private investigator (Tom Sizemore) who is systematically destroying the team.
After a father and daughter get kidnapped, a former foe of the BAU returns with very specific demands for Dr. Reid.
Following a series of fatal shootings, the BAU team travels to Illinois to investigate what appears to be a copycat serial killer.
The members of the BAU enjoy a Saturday off in vastly different ways Rossi and Prentiss help Simmons assemble a new crib Garcia leads a hacking competition Dr. Reid strikes up a conversation with a woman named Maxine.
The BAU investigates a string of murders taking place in supposedly haunted houses in Lewiston, Maine.
Rossi questions his actions in the aftermath of a struggle with a serial killer who appears to have outsmarted the BAU.
The BAU team flies to Iowa to investigate the disappearance of three 10-year-old children who appear to have been abducted from their homes, with surveillance video from a park as their only lead to finding the children's whereabouts.
The BAU team heads to Portland, Ore., to investigate a chilling abduction that may be linked to a local couple who were killed in their home a week earlier.
Prentiss faces her past when the BAU is sent to investigate the murders of prominent businessmen, all of whom are missing their hearts Prentiss plans a romantic first date with Mendoza, but the evening is cut short by an urgent call from Rossi.
A professor from Lewis' past tips off the BAU to an alarming number of overdose deaths of patients who just completed rehab.
The BAU investigates a double homicide and kidnapping in New Hampshire Rossi's plans to elevate his relationship with Krystall don't go as planned.
Mac, Desi and Russ go under cover during a royal Indian wedding to protect a princess whose policies could put her life in danger Bozer suspects Riley is up to her old hacking ways.
Mac and Riley head overseas together to prevent a governmental collapse and inadvertently inhale new, deadly microscopic technology.