The WORST Episodes of Numb3rs

Every episode ever - ranked by fan votes!

Last Updated: Sep 19, 2021

Network: CBS

We all use math every day... Inspired by actual cases and experiences, Numb3rs depicts the confluence of police work and mathematics in solving crime. An FBI agent recruits his mathematical genius brother to help solve a wide range of challenging crimes in Los Angeles from a very different perspective.

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Arrow of Time

#1 - Arrow of Time

Season 5 - Episode 11 - Aired Jan 9, 2009

Don turns to his newly found religious beliefs when he is forced to deal with an escaped criminal who is bent on seeking revenge.

star 6.77
462 votes
Directors: Ken Sanzel
Writers: Ken Sanzel

#2 - Obsession

Season 2 - Episode 3 - Aired Oct 7, 2005

The FBI becomes involved in the stalking of a popular singer after she is threatened by an intruder in her house and reveals a series of threatening letters she's received through the mail. Charlie determines the letters are from two different people after analyzing the handwriting. When a photographer is found dead near the singer's house, Don believes the photographer was murdered and his death is somehow related to the stalking case.

star 6.91
706 votes
Directors: John Behring
Writers: Robert Port

#3 - Protest

Season 2 - Episode 16 - Aired Mar 3, 2006

Don and his team investigate an anti-war bombing outside an Army recruiting center that resembles the work of a 1970s anti-war activist who disappeared 30 years earlier after being accused of planting a bomb that killed two people. Retired Agent Thomas Larson, who tried to solve the case 30 years ago, returns to help but questions Don's loyalty when it is revealed Alan knew the radical activist and participated in demonstrations with him, thus causing tension within the family.

star 6.97
533 votes
Directors: Dennis Smith
Writers: Cheryl Heuton, Nicolas Falacci
Hot Shot

#4 - Hot Shot

Season 2 - Episode 24 - Aired May 19, 2006

Don investigates the murders of two young women found in their cars outside their homes. Their deaths were made to look like drug overdoses, but Don realizes a serial killer is responsible. Meanwhile, Charlie is having bizarre dreams about his parents. In one dream, his deceased mother appears and tells him he has a question to ask her, but he can't imagine what it could be.

star 6.99
568 votes
Directors: John Behring
Writers: Barry Schindel
The Running Man

#5 - The Running Man

Season 2 - Episode 15 - Aired Feb 3, 2006

When a DNA synthesizer with the capability of customizing diseases is stolen from the campus where Charlie teaches, Don fears the thieves may be terrorists out to start or advance a bio-warfare program and also believes the theft was an inside job.

star 7.00
627 votes
Directors: Terrence O'Hara
Writers: Ken Sanzel
The Mole

#6 - The Mole

Season 3 - Episode 4 - Aired Oct 13, 2006

Don and the team attempt to figure out what happened when a Chinese interpreter turns up dead.

star 7.02
522 votes
Writers: Robert Port

#7 - Contenders

Season 3 - Episode 16 - Aired Feb 16, 2007

One of David's closest friends is called into question after a man dies while boxing with him. When it turns out this is not the first time such an event has happened, things look even worse. Charlie is busy practicing what little he knows about poker, so he can take Larry's spot in a tournament.

star 7.04
481 votes
Directors: Alex Zakrzewski
Writers: J. David Harden
All's Fair

#8 - All's Fair

Season 2 - Episode 18 - Aired Mar 31, 2006

In an effort to find the murderer of an Iraqi woman who had been making a documentary that promoted the rights of Muslim women, Don enlists the help of the victim's cousin. Through her cousin, Don uncovers a connection to Saddam Hussein. Back at home, Charlie rekindles a romantic relationship with a former girlfriend when she visits him while on a book signing tour.

star 7.05
650 votes
Directors: Rob Morrow
Writers: Julie Hébert

#9 - Undercurrents

Season 2 - Episode 23 - Aired May 12, 2006

The FBI becomes involved when the bodies of young Asian girls are washed up on the beach. The situation becomes more critical when it is discovered one girl has avian flu. As the investigation continues, Don and his team discover a connection between the girls and the sex trade industry. Meanwhile, Amita considers a transfer to Harvard University, which causes Charlie to re-evaluate his feelings for her.

star 7.06
611 votes
Directors: J. Miller Tobin
Writers: J. David Harden

#10 - Scorched

Season 2 - Episode 11 - Aired Dec 16, 2005

An arsonist sets a fire at a car dealership that kills a sales person. The name of an extremist environmental group is spray-painted on the scene, but the group denies involvement. It becomes Don's task to determine whether the group or someone else is responsible. Charlie is called in to help figure out if there is a pattern to the fires that would help provide a profile of the arsonist.

star 7.14
732 votes
Directors: Norberto Barba
Writers: Sean Crouch

#11 - Scratch

Season 6 - Episode 11 - Aired Jan 8, 2010

Charlie meets his mathematical equivalent when LOTTERY AGENT JANE assists in the investigation into a complex scam that involves thefts of unsold lottery tickets.

star 7.15
890 votes
Writers: Mary Leah Sutton

#12 - Harvest

Season 2 - Episode 14 - Aired Jan 27, 2006

When an Asian teenager is found in the basement of an old downtown hotel where she was apparently being tortured, the investigation soon reveals the girl and three other missing women, are victims of a black market organ-harvesting scheme. Amita assists the FBI by communicating with the girl, who is from the same part of India where Amita's family once lived.

star 7.15
605 votes
Directors: John Behring
Writers: J. David Harden
Trouble in Chinatown

#13 - Trouble in Chinatown

Season 5 - Episode 13 - Aired Jan 23, 2009

A feud between Chinese gangs leads to the kidnapping of an undercover agent and the reappearance of Samuel Kraft.

star 7.16
568 votes
Directors: Julie Hébert
Writers: Peter MacNicol
Bones of Contention

#14 - Bones of Contention

Season 2 - Episode 10 - Aired Dec 9, 2005

When a researcher who specializes in Native American antiquities is killed at the museum where she works, the FBI is called in because the museum is on federal land.

star 7.17
666 votes
Directors: Jeannot Szwarc
Writers: Christos Gage, Ruth Fletcher

#15 - Toxin

Season 2 - Episode 9 - Aired Nov 25, 2005

After four people nearly die from poisoning, Don learns someone is tampering with nonprescription drugs. When the perpetrator publishes a manifesto in a local paper, Don is led to believe the person may be a former employee of the drug company that manufactured the drug.

star 7.18
761 votes
Directors: Jefery Levy
Writers: Ken Sanzel
Burn Rate

#16 - Burn Rate

Season 3 - Episode 20 - Aired Apr 6, 2007

When Don investigates a series of bombings, he calls in Charlie to help pinpoint the bomber. But the two disagree over who the culprit is. Is it a new terrorist, or an old enemy?

star 7.20
545 votes
Directors: Fred A. Keller
Writers: Don McGill
Pandora's Box

#17 - Pandora's Box

Season 3 - Episode 19 - Aired Mar 30, 2007

When a jet crashes in the middle of a forest, Charlie suspects that there is more to the crash than what meets the eye.

star 7.21
548 votes
Directors: Dennis Smith
Writers: Andrew Black
The Art of Reckoning

#18 - The Art of Reckoning

Season 3 - Episode 21 - Aired Apr 27, 2007

When a former mob hit man on death row suddenly has a change of heart and agrees to confess to his crimes, Don has an uneasy feeling about the whole affair.

star 7.21
570 votes
Directors: John Behring
Writers: Julie Hébert

#19 - Traffic

Season 3 - Episode 5 - Aired Oct 20, 2006

Don and the rest of the team investigate several attacks occurring on LA highways that may be connected.

star 7.23
547 votes
Directors: J. Miller Tobin
Writers: Nicolas Falacci, Cheryl Heuton

#20 - Convergence

Season 2 - Episode 7 - Aired Nov 11, 2005

When a father is killed in a home invasion, Don and his team investigate the connection between the murder and a rash of robberies in the upscale community.

star 7.23
706 votes
Directors: Dennis Smith
Writers: Cheryl Heuton, Nicolas Falacci
Arm in Arms

#21 - Arm in Arms

Season 6 - Episode 12 - Aired Jan 15, 2010

The gang uses their math--and a reluctant gun merchant named RANDALL P. -- to track down a missing shipment of new, deadly but defective assault weapons which are hidden among the thousands of containers in one of L.A.'s busiest ports.

star 7.23
864 votes
Writers: Andrew Dettmann

#22 - Assassin

Season 2 - Episode 5 - Aired Oct 21, 2005

Don uncovers a secret code that begins the hunt for a skilled and trained assassin, and the efforts by the FBI to save the life of a Colombian exile living in Los Angeles.

star 7.23
672 votes
Directors: Bobby Roth
Writers: Cheryl Heuton, Nicolas Falacci
Take Out

#23 - Take Out

Season 3 - Episode 14 - Aired Feb 2, 2007

When two police officers are killed while eating dinner out, Charlie tries to figure out where the killers will strike next. Don's superiors make him see the department shrink.

star 7.24
603 votes
Directors: Leslie Libman
Writers: Sean Crouch
Guns and Roses

#24 - Guns and Roses

Season 2 - Episode 20 - Aired Apr 21, 2006

When an ATF agent is found dead under unusual circumstances, Don wants to take the case, which revolves around an elaborate bank robbery, after he learns the victim was his former girlfriend. He then becomes quite introspective as he realizes the impact his career has had on his personal life and decides to turn his attention toward a new woman.

star 7.25
602 votes
Writers: Robert Port

#25 - Thirteen

Season 4 - Episode 4 - Aired Oct 19, 2007

Don, Charlie, and the team attempt to stop a serial killer who is seemingly obsessed with people resembling Biblical figures.

star 7.25
534 votes
Directors: Ralph Hemecker
Writers: Don McGill