The WORST episodes of The Irrational

Every episode of The Irrational ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of The Irrational!

Alec Mercer is a world-renowned professor of behavioral science who offers up his unique and unexpected approach to understanding human behavior to help solve an array of high-stakes cases involving governments, law enforcement and corporations.

Last Updated: 12/17/2024Network: NBCStatus: Continuing
The Wrong Side of Maybe
star
7.25
138 votes

#1 - The Wrong Side of Maybe

Season 2 - Episode 6 - Aired 11/26/2024

Alec's foray into the field of science-based forecasting takes an unexpected turn when a forecaster's statistical model predicts a train disaster. With time running out, Alec must take drastic measures to avert a mass casualty catastrophe.

Directors: Holly Dale
Watch Now:AmazonApple TV
The Real Deal
star
7.35
310 votes

#2 - The Real Deal

Season 1 - Episode 7 - Aired 11/6/2023

Alec's first date with Rose turns into a 24-hour excursion when they find themselves taking on an investigation involving a forged masterpiece. Marisa and Kylie attempt to revive their friendship, which has faltered since Alec and Marisa's divorce.

Directors: Jesse Warn
Watch Now:AmazonApple TV
Collateral Damage
star
7.38
183 votes

#3 - Collateral Damage

Season 2 - Episode 1 - Aired 10/8/2024

When Rose goes missing, Alec quickly discovers this is no ordinary kidnapping. While Rose plays a dangerous game to stall for time, Alec takes matters into his own hands to find her.

Directors: John Terlesky
Watch Now:AmazonApple TV
Stan by Me
star
7.41
119 votes

#4 - Stan by Me

Season 2 - Episode 7 - Aired 12/3/2024

Alec enters the world of K-pop fandom when a superfan is murdered, and the only suspect is the pop star the fan idolizes. Alec and Rose dig beneath the surface to uncover what happened and, in the process, he uncovers more about her past.

Watch Now:AmazonApple TV
Zero Sum
star
7.44
348 votes

#5 - Zero Sum

Season 1 - Episode 4 - Aired 10/16/2023

Alec and the team take on a kidnapping case at the request of a desperate father. Their investigation is hampered by a complicated family dynamic that slowly reveals everyone's hidden motivations.

Directors: Janice Cooke
Watch Now:AmazonApple TV
Pilot
star
7.44
476 votes

#6 - Pilot

Season 1 - Episode 1 - Aired 9/25/2023

Professor of behavioral science Alec Mercer is called upon to investigate the murder of a fashion influencer whose boyfriend, a decorated soldier and son of a senator, has confessed to the crime. Mercer suspects there’s more to the story than meets the eye.

Directors: David Frankel
Watch Now:AmazonApple TV
Formal Ties
star
7.45
146 votes

#7 - Formal Ties

Season 2 - Episode 4 - Aired 10/29/2024

Alec and Marisa attend the wedding of a mutual friend's daughter located inside a foreign embassy, where the father of the bride has been ensonced for diplomatic reasons. Their night off quickly turns into a murder investigation.

Directors: Jesse Warn
Writer: Katie Wech
Watch Now:AmazonApple TV
Point and Shoot
star
7.47
312 votes

#8 - Point and Shoot

Season 1 - Episode 6 - Aired 10/30/2023

Alec agrees to testify as an expert witness in a wrongful death trial for a friend of Kylie's. As he faces an old nemesis, he discovers competing emotions around an accidental shooting. Marisa reaches a decision about the bombing investigation.

Watch Now:AmazonApple TV
Dead Woman Walking
star
7.49
403 votes

#9 - Dead Woman Walking

Season 1 - Episode 2 - Aired 10/2/2023

Professor Mercer is approached by old friend CJ, a prominent investigative journalist, who asks for his help after she’s poisoned with a rare and deadly nerve agent. With time running out, Mercer pieces together scant clues.

Directors: Jesse Warn
Watch Now:AmazonApple TV
Cheating Life
star
7.50
275 votes

#10 - Cheating Life

Season 1 - Episode 9 - Aired 2/5/2024

After witnessing a hit and run during a friend's livestream, Alec and Kylie aim to prove it wasn't an accident. As Marisa and Jace continue their investigation into the church bombing, they set their sights on a prominent senator.

Directors: Carl Seaton
Watch Now:AmazonApple TV
Lucky Charms
star
7.50
313 votes

#11 - Lucky Charms

Season 1 - Episode 5 - Aired 10/23/2023

Alec and the team head to Las Vegas to help Camille, a former colleague turned expert poker player who's been lured into danger. They must take some risks to solve a gambling mystery before Camille gets hurt. Marisa makes a significant discovery.

Directors: Amanda Tapping
Watch Now:AmazonApple TV
A Kick in the Teeth
star
7.51
172 votes

#12 - A Kick in the Teeth

Season 2 - Episode 2 - Aired 10/15/2024

The FBI needs Alec and his team to help stop a serial killer terrorizing the suburbs. As the bodies pile up, Alec helps the police uncover what's really driving this murderer to his choice of victims.

Watch Now:AmazonApple TV
Scorched Earth
star
7.55
295 votes

#13 - Scorched Earth

Season 1 - Episode 8 - Aired 1/29/2024

Alec takes a case involving a young burn victim and arson that forces him to confront some trauma from his past. Phoebe and Rizwan compete for an important research grant.

Directors: Maja Vrvilo
Watch Now:AmazonApple TV
Bad Blood
star
7.59
162 votes

#14 - Bad Blood

Season 2 - Episode 3 - Aired 10/22/2024

When a rising star on Wall Street is killed during her hockey game, Alec must determine if it was an accident or murder. Alex and Rose find themselves on opposite sides of the case as they try to get to the heart of the victim's cutthroat world.

Directors: Jeffrey W. Byrd
Watch Now:AmazonApple TV
Anatomy of a Fall
star
7.60
150 votes

#15 - Anatomy of a Fall

Season 2 - Episode 5 - Aired 11/12/2024

Simon's mother asks Alec to help stop a suicide contagion when a third student death strikes the campus. Alex asks Marisa to help when he thinks there might be more to the case. Phoebe struggles with her next career move.

Directors: Darnell Martin
Watch Now:AmazonApple TV
Bombshell
star
7.61
279 votes

#16 - Bombshell

Season 1 - Episode 10 - Aired 2/12/2024

Alec and his team come face to face with the man who was put away for the church bombing 20 years earlier. Marisa and Kylie work together to save Alec, Phoebe and Rizwan. Jace makes a critical break in the case that changes everything.

Directors: Jesse Warn
Watch Now:AmazonApple TV
The Barnum Effect
star
7.63
371 votes

#17 - The Barnum Effect

Season 1 - Episode 3 - Aired 10/9/2023

After a passenger plane crashes into the Potomac River, suspicions focus immediately on the pilot. Professor Mercer and the team are asked to investigate the pilot’s personal motivations and piece together clues in the hopes of revealing the truth.

Directors: John Terlesky
Writer: Mark Goffman
Watch Now:AmazonApple TV
Reciprocity
star
7.68
264 votes

#18 - Reciprocity

Season 1 - Episode 11 - Aired 2/19/2024

Alec and Marisa are close to finding the culprit of the church bombing. Kylie gets an interview with the FBI, but is pulled into the investigation. Rose tracks down a witness. Phoebe and Rizwan make a discovery that sheds light on the truth.

Watch Now:AmazonApple TV