The BEST episodes of The Irrational
Every episode of The Irrational ever, ranked from best to worst by thousands of votes from fans of the show. The best 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.
#1 - Conversation Games
Season 2 - Episode 15 - Aired 2/25/2025
When Kylie and Marisa find evidence that a tech billionaire may be a serial killer, Alec quickly determines the only way to prove the killer's guilt is for Alec to extract a confession, which leads into a dangerous game of cat and mouse.
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#2 - 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.
#3 - Straight From the Heart
Season 2 - Episode 12 - Aired 2/4/2025
Renee seeks Alec's help after she has a dream containing details about a murder that actually happened. The case grows more intriguing when they realize the victim was Renee's heart transplant donor. Marisa is surprised by a visitor from her past.
#4 - The Milgram Experiment
Season 2 - Episode 14 - Aired 2/18/2025
Alec helps Rose when an attorney general is threatened by a scandalous deep fake video that puts lives in danger. The head of Rose's firm arrives from Europe and gets entangled in their case work, leading Alec to do an experiment.
#5 - 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.
#6 - 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.
#7 - 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.
#8 - 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.
#9 - Murder She Rode
Season 2 - Episode 13 - Aired 2/11/2025
After a champion horse throws and kills its rider, Alec and Phoebe are called up on to save the horse from being euthanized. Their investigation reveals what happened isn't at all as it appears.
#10 - Now You Don't
Season 2 - Episode 10 - Aired 1/21/2025
Alec brings Rose on a date to a magic club he frequents where a friend is the headliner. The evening turns deadly when an audience volunteer is inexplicably killed onstage, and seemingly by magic.
#11 - 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.
#12 - Ghost Ship
Season 2 - Episode 11 - Aired 1/28/2025
Alec and Marisa investigate a mysterious ghost ship that has washed up on the shores of his hometown. This forces him to revisit his past and spend time with his father with whom he has a fraught and complicated relationship.
#13 - 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.
#14 - 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.
#15 - 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.
#16 - 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.
#17 - 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.
#18 - Another Man's Treasure
Season 2 - Episode 9 - Aired 1/14/2025
Alec and Marisa investigate a museum heist, and a curator and his son might hold the key. The case raises ethical questions about the controversial practice of buying and selling cultural artifacts, which brings old memories for Marisa.
#19 - 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.
#20 - 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.
#21 - 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.
#22 - 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.
#23 - Lost Souls
Season 2 - Episode 8 - Aired 1/7/2025
When an acclaimed tennis player goes missing in a remote forest, Alec is called to help find her and bring her to safety. However, a medical emergency threatens to sideline Alec, leaving Marisa and Rose to race against time and rescue the woman.
#24 - 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.
#25 - 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.