8.2/10363 votes#1 - Trust Metric
Season 4 Episode 1 - Aired 9/28/2007
After the events of "The Janus List," Colby escapes from custody. Don and the team go after him, but everything may not be as it seems.
Director: Tony Scott
Writer: Ken Sanzel
7.1/10283 votes#2 - Hollywood Homicide
Season 4 Episode 2 - Aired 10/5/2007
An actor on his way to stardom finds himself in the middle of a murder investigation when a young woman is murdered in his house.
Director: Alex Zakrzewski
Writer: Andrew Dettmann
7.3/10258 votes#3 - Velocity
Season 4 Episode 3 - Aired 10/12/2007
When a car crashes into a busy coffee shop, the team discovers the fatal act might not have been an accident.
Director: Frederick King Keller
Writer: Nicolas Falacci, Cheryl Heuton
7.4/10297 votes#4 - Thirteen
Season 4 Episode 4 - Aired 10/19/2007
Don, Charlie, and the team attempt to stop a serial killer who is seemingly obsessed with people resembling Biblical figures.
Director: Ralph Hemecker
Writer: Don McGill
7.5/10276 votes#5 - Robin Hood
Season 4 Episode 5 - Aired 10/26/2007
Robberies the storybook hero would have been proud to claim plague Don and Charlie as they attempt to catch a do-good thief who is donating his spoils to charity.
Director: J. Miller Tobin
Writer: Robert Port
7.3/10255 votes#6 - In Security
Season 4 Episode 6 - Aired 11/2/2007
Don feels responsible for a life lost. The victim was in the Witness Protection Program, but she wasn't the only one keeping secrets...what is Don hiding?
Director: Stephen Gyllenhaal
Writer: Sean Crouch
7.7/10275 votes#7 - Primacy
Season 4 Episode 7 - Aired 11/9/2007
When a man is found dead, the team enters the world of alternate reality gaming. However, their investigation leads to a danger for a loved one.
Director: Chris Hartwill
Writer: Julie Hébert
7.1/10270 votes#8 - Tabu
Season 4 Episode 8 - Aired 11/16/2007
When a wealthy heiress is kidnapped, Don and the team race against the clock in hopes to find her. However, the motivations behind her disappearance aren't what they seem.
Director: Alex Zakrzewski
Writer: Sekou Hamilton
7.7/10309 votes#9 - Graphic
Season 4 Episode 9 - Aired 11/23/2007
The team investigates the theft of a graphic comic book.
Director: John Behring
Writer: Nicolas Falacci, Cheryl Heuton
7.8/10277 votes#10 - Chinese Box
Season 4 Episode 10 - Aired 12/14/2007
Don and the team are left with little recourse when a former FBI subcontractor takes a team member hostage.
Director: Dennis Smith
Writer: Ken Sanzel
7.7/10258 votes#11 - Breaking Point
Season 4 Episode 11 - Aired 1/11/2008
Charlie's life is put in danger when Don brings him in on the case of a missing reporter.
Director: Craig Ross Jr.
Writer: Andrew Dettmann
7.9/10278 votes#12 - Power
Season 4 Episode 12 - Aired 1/18/2008
A bad case becomes worse when Don and the team must pursue a police officer believed to have committed unspeakable crimes.
Director: Julie Hébert
Writer: Julie Hébert
7.2/10242 votes#13 - Black Swan
Season 4 Episode 13 - Aired 4/4/2008
Don and the team bust a meth lab, but when Don has a feeling there's more to the organization than just what's on the surface, his intuition is put to the test.
Director: John Behring
Writer: Ken Sanzel
7.6/10246 votes#14 - Checkmate
Season 4 Episode 14 - Aired 4/11/2008
Don runs into Robin Brooks during an investigation concerning informants and a chess master.
Director: Stephen Gyllenhaal
Writer: Robert Port
7.5/10243 votes#15 - End Game
Season 4 Episode 15 - Aired 4/25/2008
Don and his team hunt for an ex-Marine wanted for murder. Things become confusing, however, when the Marine's family is kidnapped. Is there more to this case than meets the eye?
Director: Dennis Smith
Writer: Don McGill
7.3/10267 votes#16 - Atomic No. 33
Season 4 Episode 16 - Aired 5/2/2008
Don and the team must investigate a religious cult after scores of followers are poisoned.
Director: Leslie Libman
Writer: Sean Crouch
7.3/10247 votes#17 - Pay to Play
Season 4 Episode 17 - Aired 5/9/2008
When a musician is murdered, Don and his team must race to find the culprits. They need Charlie's help, but he is busy with Amita's parents coming for a visit.
Director: Alex Zakrzewski
Writer: Andrew Dettmann, Steve Cohen
8.1/10268 votes#18 - When World's Collide
Season 4 Episode 18 - Aired 5/16/2008
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.
Director: John Behring
Writer: Nicolas Falacci, Cheryl Heuton
The Best Episodes of Numb3rs Season 4
Every episode of Numb3rs Season 4 ranked from best to worst. Discover the Best Episodes of Numb3rs Season 4!
Inspired by actual cases and experiences, Numb3rs depicts the confluence of police work and mathematics in solving crime as an FBI agent recruits his mathematical...
Genres:CrimeDramaMystery
Network:CBS
Season 4 Ratings Summary
"Trust Metric" is the best rated episode of "Numb3rs" season 4. It scored 8.2/10 based on 363 votes. Directed by Tony Scott and written by Ken Sanzel, it aired on 9/28/2007. This episode is rated 1.1 points higher than the second-best, "Hollywood Homicide".