The FBI races to find the kidnapped daughter of a senator who is being held for ransom, and they must uncover the senator's past to unravel who did this.
Team Scorpion is tasked with retrieving stealth technology from a military plane that was shot down in Bosnia; Megan hangs out at the garage with Sylvester.
Team Scorpion finds their only hope of stopping a nuclear bomb from launching is a wounded ex-Secret Service agent who cannot remember the site's location.
The BAU investigates rumors of an elusive "Tall Man" who is believed to be responsible for three missing people in JJ's home town of East Allegheny, Penn.
The BAU helps local law enforcement in Tallahassee, Fla., investigate a ritualistic murder; Prentiss worries about Garcia's behavior after her abduction.
Alvez struggles to maintain his objectivity while the team investigates murders that are connected to his time working alongside the DEA and Mexican police.
The BAU is against the clock as they attempt to capture a collection of vigilantes who are behind attacks in Washington, D.C., that occur every 27 minutes.
A judge sentences a man to life in prison before she and her daughter are murdered; Dana's shared history with the victim makes her interested in the case.
An alt-right supporter is killed after a speech they gave at a university located in New York City, which forces Maggie and OA to rely on OA's sister for help.
Maggie and OA are determined to locate a missing couple who have committed a recent spree of violent armed robberies that ended in an off-duty officer's death.
The suspect in the case of a murdered journalist is linked to other previous cases; the victim's death mirrors a traumatic event Maggie experienced in her past.
Maggie and OA search for a serial bomber who targets elite Wall Street members while Dana deals with an arrogant profiler who is consulting on the case.
Maggie and OA learn that a kidnapper who has taken the daughter of a wealthy family hostage aspires to take his plans disturbingly far beyond abduction.