Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

A deadly face-off leads to a life-threatening moment; Catherine and Sam seek help for his parents.

Bill's latest discovery is put in jeopardy, even as trouble brews with the human aliens; Catherine must decide where her loyalties lie.

After getting kicked out of the A-List villains' Soho Lair, M.O.D.O.K. decides to slum it at The Bar With No Name. There, he forms a crew of street-level baddies, intent on using them for a heist that will get him back into the Soho Lair. However, after a wild night of bonding and backstory sharing, they form a real camaraderie. Meanwhile, Jodie goes looking for M.O.D.O.K. at AIM and bonds with Monica while Lou meets Monica's daughter, Carmilla. College-aged M.O.D.O.K. has returned from the time stream and kidnaps the Super Adaptoid.

M.O.D.O.K. suddenly starts acting like a model employee, dutifully delivering mail and making tablets. Austin has a change of heart and tries to inform M.O.D.O.K. who really is running GRUMBL. Thrown by M.O.D.O.K.’s new behavior, Gary thinks it's Austin's fault, and Monica suspects M.O.D.O.K. is planning something against her. Eventually, M.O.D.O.K. reveals that he is selling his shares in AIM to Tony Stark and starts a new business with Monica. Austin misses the chance to tell M.O.D.O.K. the truth about GRUMBL.

Lou's bar mitzvah doesn't attract many guests, so M.O.D.O.K. is forced to invite the villains and creatures he’s met along the season. Young M.O.D.O.K. attacks and puts the family in a precarious situation before taking M.O.D.O.K. into the time stream. Young M.O.D.O.K. reveals that if M.O.D.O.K. truly wants to take over the world, his family has to die. M.O.D.O.K. is forced to make the toughest decision of his life.

A deadly face-off leads to a life-threatening moment; Catherine and Sam seek help for his parents.

Bill's latest discovery is put in jeopardy, even as trouble brews with the human aliens; Catherine must decide where her loyalties lie.

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.

While the team investigates the murder of a toy company CEO, Castle uncovers a lead to his mysterious disappearance, launching him into a dangerous investigation of his own.

The BAU takes charge of a hostage situation at a law firm in D.C., where Matt Simmons' wife, Kristy, works.

When a pool shark is murdered by an unseen force, Castle and Beckett uncover evidence that the killer may have paranormal powers. Meanwhile, Castle and Beckett attempt to get their lives back to normal following his disappearance.

When a dancer is murdered at the Atlanta World Salsa Championships, Will and Faith navigate the competition to uncover the truth; Angie, Ormewood and Franklin scramble to manage college interns digging into a 15-year-old cold case.

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 team identifies the remains of a successful ad man found in the grounds of a newly built community center playground.

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.

The BAU takes charge of a hostage situation at a law firm in D.C., where Matt Simmons' wife, Kristy, works.

A double murder leads the unit on a chase to investigate a software firm's activity behind closed doors; Angie does her best to ensure a key witness testifies in her case.

When a dancer is murdered at the Atlanta World Salsa Championships, Will and Faith navigate the competition to uncover the truth; Angie, Ormewood and Franklin scramble to manage college interns digging into a 15-year-old cold case.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

Beckett and Castle investigate the shooting of an ice cream vendor and clues lead them to suspect that an unknown second grade child might be able to help them solve the case; Castle goes undercover at a school to try and find the student.

A 15-year-old Jane Doe, who is hearing impaired and unable to communicate, is found on the streets covered in blood and wielding a knife, leading the team to believe she is responsible for a recent murder.

When a web celebrity is murdered, Castle and Beckett explore the flashy world of internet fame, but when the killer posts pictures from the crime scene on a photo-sharing site, they realise they are up against a social media sociopath who may strike again.

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".

When the GBI discovers that a neo-Nazi organization is planning an attack, they prioritize the case to protect innocent people; Angie faces a potentially life-changing scenario and investigates a sneaker release gone wrong with Ormewood.

A new lead in Colter’s white whale case, the disappearance of Gina Picket, brings him and retired cop Keaton (guest star Brent Sexton) back together to track down a serial killer.

When a dancer is murdered at the Atlanta World Salsa Championships, Will and Faith navigate the competition to uncover the truth; Angie, Ormewood and Franklin scramble to manage college interns digging into a 15-year-old cold case.

Beckett and Castle investigate the shooting of an ice cream vendor and clues lead them to suspect that an unknown second grade child might be able to help them solve the case; Castle goes undercover at a school to try and find the student.

When the GBI discovers that a neo-Nazi organization is planning an attack, they prioritize the case to protect innocent people; Angie faces a potentially life-changing scenario and investigates a sneaker release gone wrong with Ormewood.

A 15-year-old Jane Doe, who is hearing impaired and unable to communicate, is found on the streets covered in blood and wielding a knife, leading the team to believe she is responsible for a recent murder.

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

The disastrous cruise continues when Bobby and Athena respond to the ship's explosion, racing to aid injured passengers; Hen questions her instincts in a life-taking call and grows concerned about Athena and Bobby's whereabouts.

When Castle gets knocked out while tracking some criminals with Becket, he wakes up to a world in which he and Kate have never met.

When the bodies of two seemingly unrelated victims are found just hours apart in San Diego and Los Angeles respectively, the BAU suspects that that not one, but two killers are working together to commit these murders.