The Jeffersonian investigates the decomposing body of a social worker in the park, but evidence suggests the killer lived with the body for months before dumping it.

The Jeffersonian investigates the murder of a convicted felon who had been released to a halfway house, but disappeared, and a suspect in the case has ties to Booth. Meanwhile, Brennan testifies at an FBI hearing about the circumstances regarding her assault of an unarmed suspect from a previous case, and the outcome of the hearing could lead to her suspension and prevent her from working with the FBI. Aubrey and Jessica's (guest star Laura Spencer) first kiss is delayed again and Hodgins continues to push Angela away.

As the dust settles on their brave new world, the survivors are forced to face some cold truths. Catherine is stunned to discover the part she played in bringing about the alien attack. Helen becomes fixated on revenge. And Emily momentarily regains her sight. But is the miracle cause for celebration, or concern?

The survivors make some disarming discoveries not only about the aliens but also about themselves. Mokrani goes on the offensive, taking the fight to the aliens. Ash is forced to make the hardest decision of his life. And Chloe’s past catches up with her, threatening to rip apart the delicate semblance of normality she is so desperately clinging on to.

Far out! Korvo and Terry manipulate each other with time travel while Yumyulack grows a fat hog.

As the dust settles on their brave new world, the survivors are forced to face some cold truths. Catherine is stunned to discover the part she played in bringing about the alien attack. Helen becomes fixated on revenge. And Emily momentarily regains her sight. But is the miracle cause for celebration, or concern?

The survivors make some disarming discoveries not only about the aliens but also about themselves. Mokrani goes on the offensive, taking the fight to the aliens. Ash is forced to make the hardest decision of his life. And Chloe’s past catches up with her, threatening to rip apart the delicate semblance of normality she is so desperately clinging on to.

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.

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.

During the trial of a murdered socialite, a juror falls dead from cyanide poisoning. Suspect number one is the defendant of the trial, having an accomplice poison the juror's coffee within the courthouse.

When a reporter is found dead inside a pizza oven, Castle and Beckett try to determine why he was murdered. They hunt a trail of suspects working for franchises with very similar names.

When a future Olympic swimmer is found dead in the pool, Castle and Beckett travel into the world of sports, drugs, and drug dealers.

The team is alarmed when Giuseppe Montolo dies in prison after he warns Morgan about the "Dirty Dozen," an underground group of hitmen, and JJ returns from maternity leave.

After two undercover DEA agents are murdered and a third goes missing, the BAU joins the NSA to investigate whether an underground Internet drug syndicate is involved. Also, Hotch hopes the team's work with the NSA brings them closer to finding the "Dirty Dozen" hitmen ring.

The BAU implements an elaborate strategy to try and take down the "Dirty Dozen" hitmen ring, with Reid playing a central role.

Season 5 picks up on the proverbial morning after, with Castle and Beckett facing new questions -- Was this a one-time fling, or are they now a couple?

When a young woman is mysteriously murdered, Beckett and Castle discover her death may be linked to a repossessed storage unit up for auction.

The team investigates the murder of a police officer that sends shockwaves through both the Jeffersonian and FBI teams. Behavioral analyst Leslie Green (guest star Sara Rue) is assigned to work with Booth on the investigation and lends her professional assessments on who the cop killer could be.

Hodgins is eight weeks into his rehabilitation for his paralysis and forced to navigate life in a wheelchair. Meanwhile, Brennan and Booth investigate the death of a public defender who had multiple defendants from previous cases with motives to kill her.

The BAU hunts an UnSub in Phoenix who is kidnapping victims and depriving them of sleep. Also, Hotch and Garcia deal with the threat from the underground hitman group, the "Dirty Dozen".

"Future Perfect" -The BAU searches for an UnSub who may be fascinated with medical experimentation.

When bodies are discovered in public places throughout Boston, the BAU investigates whether a taxi or ride-share service the victims used before their deaths could lead the team to the UnSub.

Nichols investigates Fern as a suspect in Quinn's murder while Dass tries to figure out how Harrow is involved. Meanwhile, Harrow investigates the death of a resident in a nursing home.

A dead man wakes up on Harrow's autopsy table and promptly takes him hostage. Meanwhile, Dass pieces together clues from Quinn's murder and uncovers evidence that Harrow destroyed evidence, proof he was covering his tracks. Season Finale.

The team investigates the murder of a police officer that sends shockwaves through both the Jeffersonian and FBI teams. Behavioral analyst Leslie Green (guest star Sara Rue) is assigned to work with Booth on the investigation and lends her professional assessments on who the cop killer could be.

Hodgins is eight weeks into his rehabilitation for his paralysis and forced to navigate life in a wheelchair. Meanwhile, Brennan and Booth investigate the death of a public defender who had multiple defendants from previous cases with motives to kill her.

An Ernest Hemingway lookalike is discovered adrift with a bullet hole in his head under a glass-bottom boat during a booze cruise.

Reenie gets Colter to take a case involving a woman missing from a high-end wellness retreat in Napa designed for CEOs.

Tara is visited by a ghost who helps her get to the root of her relationship issues.

Harrow recovers from a near-fatal shooting and returns immediately to work, investigating the tragic puzzle of a young mother's psychotic episode while trying to figure out who shot him.

Harrow investigates the death of two base jumpers while Fern deals with the fallout of her arrest on serious drug allegations.

When a mummified body is found bricked up in the basement of a suburban home, Harrow and Grace set about uncovering a grim secret that has been buried for twenty years.