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

With Adina's plan for world destruction reaching completion, and our heroes in the alternate world under attack, both sides must make great sacrifices if they are to save humanity.

With Adina's plan in motion, the world's last hope is for Bill to make one more journey, risking his own life in search of Catherine's help.

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.

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.

With Adina's plan for world destruction reaching completion, and our heroes in the alternate world under attack, both sides must make great sacrifices if they are to save humanity.

With Adina's plan in motion, the world's last hope is for Bill to make one more journey, risking his own life in search of Catherine's help.

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

Castle and Beckett are called to investigate when a contestant in a beauty pageant is found strangled and every suspect has a motive to commit murder.

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.

An assassin with knowledge of the details behind Beckett's mother's murder escapes from custody during his trial, leaving Castle and Beckett to track him down. A secret is revealed about Captain Montgomery's past and the identity of the third cop.

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

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.

The team investigates a body found in a car crash, the remains of which belong to a founder of a men's rights organisation who may have been the victim of domestic abuse.

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

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.

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.

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

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?

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.

On Beckett's first day back from her suspension, she and Castle are thrown into the salacious world of local TV news when WHNY's veteran weather girl is found dead.

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

The BAU searches for a motive and an UnSub when victims are found in truck stop restrooms along highways throughout the South.

When an 18-year-old girl escapes from a suburban home where she was held captive for years with two other women, the BAU searches for the Unsub who kidnapped them.

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

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

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

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?

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

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.

Women are found dead inside their own homes throughout L.A. The BAU searches security footage for an UnSub who was invited into each victim's home.

Owen and the crew race to a brawl at a male strip club, a fire at a bull semen factory and a protest where male toxicity is taken to a new level. Meanwhile, Paul tentatively goes out on a first date, Grace tries to reconnect with Judd and Owen faces the consequences of his chemo.

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

When Morgan is abducted, the BAU scrambles to find him and save his life.