With Cam's reputation and career on the line, the team travels from overseas to help her solve the case of an unidentified young boy; the Forensics Anthropology Unit lost much of its vigor after disbanding to pursue personal ventures, and it will take the collaborative energy and knowledge of the newly reunited team to unravel evidence, and find closure for the family of the unknown boy.

When the remains of a couple are discovered in a cave at National Park, the team must piece together the identity of the man and the woman as well as solve the crime; and Booth's girlfriend and Afghanistan-war correspondent Hannah Burley makes a surprise visit, causing Brennan to re-evaluate her own relationship with Booth.

Catherine, Sophia, Zoe and the other survivors, finally reunited, prepare for the ultimate attack. But it is Bill who is the only one to hold the destiny of humanity in his hands, provided he is helped by Isla.

As people across the globe are experiencing hallucinations, MI5 agent Zoe contacts Bill for answers; Catherine Durand detects unusual black hole activity.

Super villain M.O.D.O.K. runs his evil organization AIM into the ground and is forced to sell it to the tech company GRUMBL. As the megalomaniacal M.O.D.O.K. struggles to regain control of AIM, he risks losing something even more important…his family!

As people across the globe are experiencing hallucinations, MI5 agent Zoe contacts Bill for answers; Catherine Durand detects unusual black hole activity.

As Adina starts the next stage of her plan, astronauts Juliet and Richard see warning signs in space; uncovering Adina's sinister mission.

Emergencies include a ride-share trip gone awry, a farming accident and a memorial service that may turn into another funeral. Owen unexpectedly bonds with the former Captain of the 126, while Marjan and the crew help Mateo try to pass his written exams.

Owen and the team race to deal with a runaway bull at a used car lot and an apparent electrocution at the hands of an LA transplant. Meanwhile, Owen is determined to prove he is physically fit for the job while undergoing chemo and Michelle gets the strongest lead yet on her missing sister.

Owen, Michelle and the 126 crew race to a rattlesnake infestation at a young family's home, and attempt to rescue a man with dementia from a dangerous scene that he created. Meanwhile, Owen adopts a firehouse dog with cancer and Michelle finally learns the truth behind her sister's disappearance. Also, a tragic accident shakes the team to its core.

While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing. As the evidence against him mounts, loyalties are tested, and when surprising revelations come to light, Beckett begins to wonder how well she really knows her new lover and partner of four years.

Beckett and Castle are followed by a documentary crew as they investigate the murder of a rock star.

When a bearded, rotund man in a red Santa suit with an ID reading Kris Kringle falls from the sky in Central Park, Castle and Beckett are on the hunt to find the person who killed Santa.

The BAU heads to Wichita in search of an UnSub abducting children while their parents sleep. Also, Morgan tries to find who was responsible for his attack.

When former BAU team member and current Interpol Agent Emily Prentiss tracks an international serial killer, she enlists the help of her friends at the BAU after she is convinced the UnSub's next victim is on American soil. Also, the BAU deals with Morgan's departure from the team.

The BAU enters into a dangerous game of cat-and-mouse with a convicted serial killer after guards at a Virginia prison intercept a package with evidence relating to the kidnapping of two boys several years ago. The team believes the notorious killer may have information on the boys' whereabouts.

When an up and coming DJ is killed at a pop star's album release party, Beckett and Castle must dive into the raucous world of New York's music industry.

While investigating the murder of a young woman, Castle and Beckett find evidence that links her death with Senator William H. Bracken, the man responsible for Beckett's mother's murder.

The team investigates the body of a private investigator who was found frozen in ice, after being dumped in the Potomac. The victim, a man with many enemies, was a "fixer" who made sure his cllients' problems got "resolved." Meanwhile, Aubrey is shocked to find information tied to his father's whereabouts, Angela and Hodgins continue to work on their rocky relationship, Brennan and Booth get Christine's first report card and criminal behaviorist Karen Delfs (guest star Sara Rue) asks Aubrey out on a date.

The team investigates the death of the leader of the Lynwood University male acapella singing group, "The Whippersnaps," whose body was found in the school rat lab. The victim recently kicked out Ian Jansen, one of the group's best singers (guest star Jordan Fisher), sending Booth and Aubrey to question Ian and other current members of the male group (including guest stars Mitch Grassi and Scott Hoying) and some stars of the competing female acapella group (including guest star Kristin Maldonado) to get a handle on the group dynamics and what could have led to the murder of one of their own. Meanwhile, surprising information about Aubrey's own college experience is brought to light, Hodgins applies for an experimental nerve regeneration study, Booth tries to plan a summer trip with Parker (guest star Gavin MacIntosh) and a new intern joins the Jeffersonian lab (guest star B.K. Cannon).

When an UnSub targets the BAU, and the team goes into action to find out who is responsible.

The BAU searches for an UnSub who is purposely disfiguring victims. Also, Rossi has an awkward reunion with his ex-wife, Hayden Montgomery, who kept his daughter, Joy, a secret from him for nearly 30 years.

Hotch is apprehended for suspected conspiracy and the BAU suspects a larger plot may be brewing.

Harrow resolves to believe that Chester really is dead, and takes a case in North Queensland, while Simon launches his own investigation into Chester.

Coping with a death that strikes close to home by focusing on work, Harrow is stunned to discover a connection between this death and another deceased man on his autopsy table.

The team investigates the body of a private investigator who was found frozen in ice, after being dumped in the Potomac. The victim, a man with many enemies, was a "fixer" who made sure his cllients' problems got "resolved." Meanwhile, Aubrey is shocked to find information tied to his father's whereabouts, Angela and Hodgins continue to work on their rocky relationship, Brennan and Booth get Christine's first report card and criminal behaviorist Karen Delfs (guest star Sara Rue) asks Aubrey out on a date.

The team investigates the death of the leader of the Lynwood University male acapella singing group, "The Whippersnaps," whose body was found in the school rat lab. The victim recently kicked out Ian Jansen, one of the group's best singers (guest star Jordan Fisher), sending Booth and Aubrey to question Ian and other current members of the male group (including guest stars Mitch Grassi and Scott Hoying) and some stars of the competing female acapella group (including guest star Kristin Maldonado) to get a handle on the group dynamics and what could have led to the murder of one of their own. Meanwhile, surprising information about Aubrey's own college experience is brought to light, Hodgins applies for an experimental nerve regeneration study, Booth tries to plan a summer trip with Parker (guest star Gavin MacIntosh) and a new intern joins the Jeffersonian lab (guest star B.K. Cannon).

A homicide detective relocates to the sleepy, middle of nowhere town of Palm Glade, looking for a change of pace from his old life with the Chicago Police Department. He soon learns this place isn’t so idyllic, as he keeps finding people murdered.

Colter takes a job locating a missing teen with a unique spiritual gift in an inhospitable mining town

The team gets closer to uncovering the identity of The Disciple.

Harrow and Fairley are sent to a double-fatality in Fairley's hometown - a trip that will test their already-strained relationship.

As Harrow and Grace investigate the death of a popular health and wellness vlogger, Harrow agitates for the exhumation of Chester's remains.

While Grace autopsies the body of an elderly man discovered in an Egyptian sarcophagus, Harrow finds himself in a battle for his own life.