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.

After experiencing a minor success, there is a whole new set of issues when members of the group are taken and held hostage.

Two different groups leave Alexandria on supply runs. While both are concerned with the future of the community, immediate danger will derail them.

Alexandria is alerted after realizing someone is missing. Several search parties will venture out, but what they find isn't what they're hoping for.

In the aftermath of a tragic blow, Eugene falls captured by Dwight, a member of the Saviors, whom are hell bent on getting even with Alexandria, Negan teaches Rick and co a brutal lesson, which shows that Rick and co finally have something to fear.

The Saviors raid Hilltop unexpectedly, forcing Daryl and Maggie into hiding; they leave with Dr. Harlan Carson in tow to replace his now-deceased brother as their doctor. While sneaking into the Sanctuary on a suicide mission, Sasha and Rosita encounter Eugene and urge him to escape, but he refuses. Sasha then locks Rosita out, telling her to go back to Alexandria because the group needs her. As Sasha breaks into the Sanctuary to kill Negan herself, Rosita flees and notices someone watching her.

Tara leads the group to Oceanside in hopes of convincing the community to join the fight against the Saviors. Natania refuses to have her people fight, but ultimately allows Rick's group to take their guns. Sasha is held prisoner at the Sanctuary, where Negan tries to convince her to join the Saviors. She confides in Eugene and asks him for a way out; he gives her one of the poison capsules he made. Upon their return to Alexandria, Rick's group is greeted by Rosita, who after running into Dwight while fleeing the Sanctuary, reveals Dwight's intentions of helping take down Negan.

Negan and the Saviors travel to Alexandria with Sasha in a coffin as a gimmick to confront Rick. On the way, Sasha commits suicide with the poison capsule Eugene gave her. At Alexandria, the Scavengers double-cross Rick's group, revealing they've been dealing with Negan all along. After a standoff, a gun fight ensues, with the unexpected arrival of Kingdom and Hilltop fighters forcing Negan and the Saviors and Scavengers to retreat. Alexandria, the Kingdom, and Hilltop are hit badly, but are prepared for an all-out war against their enemies, while the undead Sasha is put down by Maggie and Jesus.

Rick and his group, along with the Kingdom and Hilltop, have banded together to bring the fight to Negan and the Saviors.

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.

Bishop enlists the help of another chapter in his move against Ramos

Miguel discovers disturbing new information related to his mother's death.

Brennan and Booth investigate the death of a female roller derby skater whose body was dismembered. In order to get more answers, they enlist Angie to go undercover as a derby skater.

The team are called in after a crossword puzzle master is discovered in an urban fracking site.

The team investigates the remains of a 15-year-old boy. They discover that this seemingly innocent boy was actually involved in illegal activity and had attended a high school party two weeks prior where drugs were present.

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

When two members of a conspiracy group in Roswell, New Mexico perish in quick succession, the BAU is called to investigate.

When a series of backyard pool homicides are reported in California, the BAU team team searches for an UnSub with a puzzling past.

The BAU is called to Oklahoma to investigate a murderous clown terrorizing the sleepy town of Guymon.

The BAU travels to Chicago to investigate an unsub who leaves red roses on each victim. Also, Rossi gets an unexpected visit from his ex-wife, Krystall Richards.

Emergencies include an accident at a grain silo and a steak eating contest, plus an unusual home intruder; Owen helps Michelle uncover new information about her sister's disappearance.

A massive tornado sweeps through Austin, as Owen, Michelle and their teams races to save those in its path.

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.

Things get out of control and Carmy is faced with a decision.

Carmy attempts to retrain the employees of The Original Beef of Chicagoland, but is faced with resistance. In need of back-up, he brings in a talented young chef to help.

A surprise health inspection reveals the cracks in the restaurant's foundation. Carmy goes head-to-head with Richie.

Carmy attends Al-Anon. Sydney struggles to gain the respect of the staff.

Carmy and Richie cater a kid's birthday party. Tina and Sydney work together while Marcus makes donuts.

The BAU team's investigation into the home invasion and attempted homicide of a police chief's wife uncovers a world of secrets in a small town in Virginia.

The BAU is called to New York when several casualties of a brutal nature are reported in Central Park.

The BAU is called to Oklahoma to investigate a murderous clown terrorizing the sleepy town of Guymon.

The BAU travels to Chicago to investigate an unsub who leaves red roses on each victim. Also, Rossi gets an unexpected visit from his ex-wife, Krystall Richards.