The BEST Episodes of Numb3rs

Every episode ever - ranked by fan votes!

Last Updated: Nov 10, 2019

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.

When Worlds Collide

#1 - When Worlds Collide

Season 4 - Episode 18

In the season finale, Don and Charlie work together on a case that ends up with them going head to head about their personal beliefs, and one team member will walk away forever.

star 7.88
123 votes
Directors: John Behring
Writers: Cheryl Heuton, Nicolas Falacci
The Fifth Man

#2 - The Fifth Man

Season 5 - Episode 20

Don's life hangs in the balance after he is injured during a raid while investigating a series of home invasions.

star 7.88
124 votes
Directors: Ken Sanzel
Writers: Don McGill

#3 - Pilot

Season 1 - Episode 1

To help capture a serial rapist-turned-killer, FBI Special Agent Don Eppes recruits his genius brother Charlie, who uses a mathematical equation to identify the killer's point of origin by working back from the crime scene locations.

star 7.85
362 votes
Writers: Cheryl Heuton, Nicolas Falacci
The Janus List

#4 - The Janus List

Season 3 - Episode 24

In the midst of investigating a serious bomb threat, Don and Charlie uncover a secret that could change their lives and the lives of the team forever.

star 7.83
128 votes
Directors: John Behring
Writers: Cheryl Heuton, Nicolas Falacci

#5 - Disturbed

Season 5 - Episode 21

Feeling guilty over the stabbing, Charlie puts his attention on finding a serial killer using math theories to help the team solve the case before another life is taken.

star 7.82
113 votes
Directors: Dennis Smith
Writers: Cheryl Heuton, Nicolas Falacci

#6 - Hydra

Season 6 - Episode 5

The team attempts to find the daughter of a geneticist who they suspect was kidnapped by the unstable mother. However, they become concerned about the case when they find evidence that suggests the young girl was a clone. Meanwhile, Charlie and Amita discuss having kids and Liz reveals a dark secret.

star 7.80
128 votes
Directors: Ralph Hemecker
Writers: Sean Crouch
Cause and Effect

#7 - Cause and Effect

Season 6 - Episode 16

After Charlie and Amita get married and begin preparations for their London adventure, they put a slight hold on their wedded bliss when they assist the team in helping Don track down the whereabouts of his gun after it goes missing.

star 7.78
141 votes
Directors: Nicolas Falacci
Writers: Cheryl Heuton, Nicolas Falacci
The O.G.

#8 - The O.G.

Season 2 - Episode 12

When Don and his team are called to the scene of the murder of a Los Angeles gang member, they learn they are investigating the murder of another agent who had been working undercover.

star 7.77
164 votes
Directors: Rod Holcomb
Writers: Andrew Dettmann
One Hour

#9 - One Hour

Season 3 - Episode 17

Don talks to his therapist again, and while he's gone, the team races to find an eleven year-old boy being held on a $3 million ransom, and time is running out...

star 7.77
129 votes
Directors: J. Miller Tobin
Writers: Ken Sanzel

#10 - Rampage

Season 2 - Episode 21

When an assailant opens fire in the FBI offices, Don and his team must determine his motive and possible connection to a dangerous arms dealer who is on trial. After nearly getting shot, Charlie is shaken and reluctant to return to the offices, which hinders his contribution to the case.

star 7.76
152 votes
Directors: J. Miller Tobin
Writers: Ken Sanzel

#11 - Vector

Season 1 - Episode 3

Various people in the L.A. area with seemingly nothing in common start to become extremely sick and die on the same day. Don fears bioterrorists may have released a deadly virus into the environment. While he tries to discover whether anyone is behind the outbreak, Charlie tries to locate the point of origin.

star 7.74
250 votes
Writers: Jeff Vlaming

#12 - Ultimatum

Season 6 - Episode 8

While tracking down a felon running a heroin ring inside a prison, Agent Ian Edgerton becomes a murder suspect when the informant he meets with ends up dead, sending a desperate Edgerton over the edge when he takes a member of Don's team hostage.

star 7.72
140 votes
Directors: Dennis Smith
Writers: Robert David Port

#13 - Toxin

Season 2 - Episode 9

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 7.71
174 votes
Directors: Jefery Levy
Writers: Ken Sanzel
In Plain Sight

#14 - In Plain Sight

Season 2 - Episode 8

Megan feels responsible for an agent's death following an explosion at a meth house the FBI had targeted for a bust. When the kingpin eludes capture, it's discovered he may also be involved in child pornography when one of the photographs on his computer turns out to be a young girl in a sexually explicit position. The picture sends Charlie on a crusade of his own, as he remembers a girl he knew as a young child that he suspected was being abused, and he's determined to save the little girl in the picture.

star 7.71
167 votes
Directors: John Behring
Writers: Julie Hébert

#15 - Sabotage

Season 1 - Episode 6

While consulting with the NTSB at the scene of the wreck, Don learns that this tragedy is one of a series of recreated accidents involving railroad negligence. As is the pattern with the previous train wrecks, an undecipherable numerical code is left at the site, which Don recruits Charlie to solve. By breaking the code, Charlie is able to establish that this accident was a recreation of a deadly wreck that left only one survivor several years ago. Don's investigation leads him and his team to a dangerous standoff with their suspect, who has surprising ties to the railway system.

star 7.71
230 votes
Directors: Lou Antonio
Writers: Liz Friedman

#16 - Dreamland

Season 6 - Episode 6

The team investigates a decommissioned air base after a woman is found dead there, but their investigation is interrupted by paranormal happenings.

star 7.71
131 votes
Writers: Cheryl Heuton, Nicolas Falacci

#17 - Jacked

Season 5 - Episode 12

Don and his team must race to save the hostages being held on a hijacked bus.

star 7.70
111 votes
Writers: Don McGill
Prime Suspect

#18 - Prime Suspect

Season 1 - Episode 5

When a five-year-old girl is kidnapped from her birthday party, Don and Terry lead the investigation, but must rely on Charlie's help because the girl's father, Ethan, is also a mathematician. Charlie realizes the kidnapper's motive when Ethan reveals he is close to solving Riemann's Hypothesis, a difficult math problem. If solved, the solution could not only earn him $1 million, but could break the code for internet security and unlock the world's biggest financial secret.

star 7.69
232 votes
Writers: Doris Egan
Sniper Zero

#19 - Sniper Zero

Season 1 - Episode 9

The city is in a panic as a sniper goes on a shooting spree and randomly kills several people, including a postal worker. The investigation reveals that more than one shooter is at work. As Charlie works the case, he's frustrated by a sniper expert Don brings in to help out.

star 7.69
218 votes
Directors: J. Miller Tobin
Writers: Ken Sanzel
Structural Corruption

#20 - Structural Corruption

Season 1 - Episode 4

After an engineering student at CalSci is found dead from an apparent suicide, Charlie convinces Don to launch an investigation after he reads the student's thesis that asserted that the architecturally magnificent Cole Center in Los Angeles is structurally unstable. Although reluctant at first, Don and his FBI agents discover that the student's findings were correct and uncover a dangerous and surprising conspiracy. Meanwhile, Alan prepares for a first date and convinces Don and Terry to join them, hoping they might rekindle their old romance.

star 7.69
233 votes
Directors: Tim Matheson
Writers: Liz Friedman
Hot Shot

#21 - Hot Shot

Season 2 - Episode 24

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 7.68
142 votes
Directors: John Behring
Writers: Barry Schindel
Two Daughters (2)

#22 - Two Daughters (2)

Season 3 - Episode 2

David tries to get information from one of Crystal's old boyfriends, but he isn't helping. Things get personal for the team when Crystal kidnaps one of them.

star 7.68
151 votes
Directors: Alex Zakrzewski
Writers: Ken Sanzel
Greatest Hits

#23 - Greatest Hits

Season 5 - Episode 22

Don and the team are sent to look into a series of bank robberies and soon name former FBI Agent Roger Bloom as their lead suspect.

star 7.67
119 votes
Writers: Andrew Dettmann
Spree (1)

#24 - Spree (1)

Season 3 - Episode 1

Don has a problem. Crystal Hoyle and her boyfriend Buck are going on a robbery and killing spree. Their terror is spread over seven states, and Charlie is called in to help. However, problems between Alan and Charlie may hinder Charlie's concentration.

star 7.67
154 votes
Directors: John Behring
Writers: Ken Sanzel
Thirty-Six Hours

#25 - Thirty-Six Hours

Season 5 - Episode 8

When a passenger train collides with a freight train David (Alimi Ballard), Don, and Colby are called in to help rescue survivors and to investigate the cause of the crash

star 7.65
121 votes
Directors: Rod Holcomb
Writers: Julie Hébert