When Reid discovers former FBI Special Agent Owen Quinn locked inside a storage unit, the BAU questions the credibility of Quinn's bizarre accounts of searching for an UnSub that he named "The Strangler".

Owen Strand, the lone survivor of his Manhattan firehouse on 9/11, takes his progressive philosophies of life and firefighting down to Austin, Texas, where he helps the firefighters of Firehouse 126 start anew.

The crew races to a disaster at a wave pool, and an outbreak of mercury poisoning leaving its victims in a a zombie-like state; Owen must come to terms with his illness; Michelle follows a new lead on her missing sister.

Negan has to enlist the help of his lieutenants in solving a huge issue facing the Sanctuary; Rick and the group continue to enact the plan.

Every story and battle from the first half of the season comes crashing together in this action-packed, emotional mid-season finale.

Rick faces new difficulties after a battle. Meanwhile, the fight continues in other communities as core members face hard decisions.

In a bid to save his marriage, M.O.D.O.K. takes Jodie back in time to a concert they missed when they were in college. During a detour to kill the child-version of his GRUMBL boss, M.O.D.O.K. and Jodie are attacked by college-aged M.O.D.O.K., who accidentally absorbs their time crystals, stranding them in 2002. The couple reconciles but is stuck in the past until they catch up to the present. Once in the present, they prevent themselves from ever going to the past in the first place, erasing their entire adventure from the timeline.

Young M.O.D.O.K. has kidnapped the family and replaced them with robots that trick M.O.D.O.K. into thinking Jodie wants him back. M.O.D.O.K. learns the truth and goes to free his real family. The family meet up inside the carnival-themed arena Murderworld, where young M.O.D.O.K. and Arcade reveal that each family member has two robotic replicas and that they must fight to the death, unsure of who is real or fake. Jodie goes toe-to-toe with Young M.O.D.O.K. The family leaves feeling united for the first time in a while.

Daryl finds himself in bad company as his group heads to the Hilltop; Gabriel's faith gets tested.

Hilltop's leadership faces a difficult dilemma after the arrival of unexpected visitors; Rick comes face to face with an adversary.

Trouble arises when unexpected visitors arrive at the Hilltop and the community is thrust into action; heartbreaking discoveries are made.

A Heaps prisoner makes a discovery; Carol searches for someone in the nearby forest; Rick and Morgan find themselves in the company of strangers.

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.

The BAU is called to Taos, N.M. to investigate an UnSub who is targeting his victims' temporal lobes.

When Reid discovers former FBI Special Agent Owen Quinn locked inside a storage unit, the BAU questions the credibility of Quinn's bizarre accounts of searching for an UnSub that he named "The Strangler".

The team investigates the death of a former Marine sergeant whose remains were found burned to a crisp and discover that she was discharged after a fist fight with another Marine.

When evil tech genius Christopher Pelant returns to toy with the Jeffersonian team in their newest investigation, they discover that the string of murders that have been occurring are tied to FBI agents close to Booth.

The Jeffersonian team investigates the murder of Jason Siedel, an accountant for the state department, whose remains were found in a hotel air conditioning unit.

Ryan Murphy, Brad Falchuk and Tim Minear reimagine the procedural drama with "9-1-1." The series explores the high-pressure experiences of first responders -- including police officers, firefighters and dispatchers -- who are thrust into the most frightening, shocking and heart-stopping situations. These emergency responders must try to balance saving those who are at their most vulnerable with solving the problems in their own lives. The show draws from real-life, high-pressure experiences of first responders who regularly face heart-stopping situations that are often unpredictable, intense and uplifting at the same time.

The FBI's assistant director of national security, Linda Barnes, joins the BAU as they investigate a quadruple homicide of a group of roommates in St. Louis.

Away from the watchful eye of the FBI's assistant director of national security, Linda Barnes, the BAU meets in secret to investigate an UnSub who appears to be kidnapping and photographing young women.

When Reid and Garcia are abducted by Benjamin Merva, it's up to the rest of the team to find them. The BAU finds surprising clues in their own history to solve why the two heroes have been targeted by a mass murderer. It's a race to save them before a "Believers" prophecy is fulfilled.

When the mummified remains of numerous victims are found in the walls of an elderly couple's remote South Carolina home, Rossi, JJ, and Simmons are dispatched to track down a trail of clues that date back over 20 years. The hunt becomes urgent after BAU learns the killer has a specific ritual of when to strike, and like clockwork another person goes missing. Also, Rossi reconnects with his ex-wife, Krystall.

Owen and the 126 crew race to a gender reveal party gone horribly wrong, and a father/son trapped in a cave during a spelunking excursion. Meanwhile, Owen helps T.K. reconcile the past to help his future, Judd and Grace aid Judd's aging father and Michelle learns the full truth about her missing sister, Iris.

Owen helps T.K. reconcile the past to help his future; Judd and Grace aid Judd's aging father; Michelle learns the full truth about her missing sister, Iris.

A management consultant's body is found, but the crime scene had been contaminated by bobcats. Evidence leads the team to a marriage retreat, so Booth and Brennan don old undercover identities to determine the killer.

The team investigate a billion dollar hedge fund company when severely damaged remains from human's are found under a merry go round.

The team are called in after the remains of a psychology professor are discovered.

The Jeffersonian team investigates the murder of a TV producer. Meanwhile, Brennan has trouble accepting the fact that Christine might be an "average" child when her daughter gets accused of biting another classmate.

The team investigates the murder of Jack Spindler, a successful employee at a brokerage firm by day but a stripper by night.

The team are called in after the remains of a psychology professor are discovered.

The team rushes to prevent a viral outbreak while investigating the murder of journalist Mia Garrett after her infected body is found at a biohazard facility.

The time travelling Young M.O.D.O.K. finally exacts his revenge by kidnapping the family and pitting them against each other in a twisted family therapy / battle to the death.

When evil tech genius Christopher Pelant returns to toy with the Jeffersonian team in their newest investigation, they discover that the string of murders that have been occurring are tied to FBI agents close to Booth.

The group in Oceanside continues to train in case the Whisperers return; tensions are high as the heroes struggle to hold onto their concept of civilisation.