The worst episodes of The Mentalist
Ranked by viewer rating, lows first. Vote on a placement to back it or contest it.
- 01
The team investigates a murder linked to a counterfeit diamond operation, but illness forces Jane to direct his colleagues from the office as he recuperates. Meanwhile, Abbott is concerned that transgressions in his past could harm his wife's chance to obtain a prestigious job in Washington, D.C..
- 02
Lisbon goes undercover as a prison inmate in order to get a convict to turn on her boyfriend, who is the leader of a high-end car theft ring.
- 03
Jane and Lisbon travel to Beirut where they must work with former adversary, Erica Flynn, who agrees to help the FBI apprehend her boyfriend, a courier for terrorist organizations, in exchange for amnesty for her past crimes.
- 04
A chance encounter with a military colonel leads Jane to believe the soldier is hiding something, leading him to dig into the closed murder case of the man's wife.
- 05
The FBI is brought in to consult on a botched DEA raid, but when Abbott's former boss tries to blackmail Abbott into keeping the agency's missteps quiet, he is forced to choose between his career and morals.
- 06
A murder investigation becomes personal for Lisbon when she learns that her underachieving younger brother, Jimmy, is being sought as a key witness.
- 07
Jane worries for Lisbon's safety when the team puts itself in the line of fire to protect the witness in a murder investigation from a skilled assassin.
- 08
When Abbott's old boss, Bill Peterson, threatens Abbott's career – and possibly his freedom – Jane devises a risky plan to protect his friend's future.
- 09
Jane takes extreme measures as the team tries to apprehend a deadly gang of armored car robbers before their desperation to remain free costs more innocent people their lives.
- 10
Jane and Fischer investigate a murder at an oil fracking site, while Rigsby and Van Pelt travel to Austin to help investigate suspects in the string of attacks on former CBI team members.
- 11
When a woman is found murdered near a remote men's social club, Jane must find a way to insinuate himself into the insular group to find the killer.
- 12
Two years after the Red John case was put to rest, Jane's newfound peace is interrupted by a surprising job offer that could change everything for him.
- 13
Jane and the FBI take up the cause of a death row inmate who has two days to prove his innocence before his sentence is carried out.
- 14
Jane and Lisbon decide to keep their new relationship a secret from their colleagues as they investigate the murder of an undercover agent. Also, young, ambitious agent Michelle Vega joins the team.
- 15
A young man claiming to have psychic powers offers his help to the FBI in solving a pair of murders, but when he leads them to additional victims, Jane and the team begin to suspect that he is in fact the killer they're hunting.
- 16
Following the shocking events at Jane's house, the Red John list is narrowed down further, and the CBI's priority is the remaining suspects.
- 17
Jane's investigation leads him to join a separatist commune after a U.S. attorney is found dead in Mexico, even though there's no record of her crossing the border. Also, Rigsby and Van Pelt convince J.J. LaRoche to help them discover who is stalking former CBI members.
- 18
A chance encounter with a suspicious-looking individual leads Jane and Lisbon to uncover a vast human trafficking ring. Meanwhile, Lisbon remains tempted by Pike's offer to move to D.C. with him.
- 19
With time running out to save the victims of a kidnapping ring before they are transported overseas, Jane and Lisbon zero in on the criminal enterprise's mastermind. Meanwhile, Lisbon decides if she will move to D.C. with Marcus Pike.
- 20
Jane and the FBI investigate the murder of a high-tech cartographer who may have unearthed a spy ring before his death. Meanwhile, Rigsby and Van Pelt find themselves on the trail of an alarming conspiracy.
- 21
Jane agrees to once again pretend to be a renowned psychic and be used as bait in an attempt to lure out a serial killer and give the FBI a chance to apprehend him.
- 22
With very little evidence, Jane and the CBI investigate the death of a mob boss' son. Meanwhile, while taking a belligerent witness in for questioning, Van Pelt is haunted by the memories of O'Laughlin's shooting.
- 23
Jane gets the CBI involved in a murder case in Napa in order to investigate Sheriff McAllister, while Rigsby and Van Pelt contemplate their future in light of a new office policy.
- 24
When a prominent member of Visualize is mysteriously killed, Jane investigates in the hopes that the case will provide a clue that will lead him to Red John.
- 25
The FBI reluctantly enlists Jane's help to find a missing computer programmer, but he refuses to help unless Lisbon is brought on board as well.
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