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Season guide

Numb3rs: Season 4

18 episodes Premiered Sep 28, 2007 Updated Sep 25, 2026
Previously on Numb3rs

Season 4 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Numb3rs Season 3.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 4: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

22%
78%
Mytharc (4): Crucial lore & season climaxes
Core (14): Character development & subplots
Side Quest (0): Standalone / filler
S4·E1 Mytharc

Trust Metric

Sep 28, 2007 · 43 min

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.

S4·E2 Mytharc

Hollywood Homicide

Oct 5, 2007 · 43 min

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.

S4·E3 Core

Velocity

Oct 12, 2007 · 41 min

When a car crashes into a busy coffee shop, the team discovers the fatal act might not have been an accident.

S4·E4 Core

Thirteen

Oct 19, 2007 · 43 min

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

S4·E5 Core

Robin Hood

Oct 26, 2007 · 42 min

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.

S4·E6 Core

In Security

Nov 2, 2007 · 43 min

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?

S4·E7 Core

Primacy

Nov 9, 2007 · 43 min

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.

S4·E8 Core

Tabu

Nov 16, 2007 · 41 min

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.

S4·E9 Core

Graphic

Nov 23, 2007 · 43 min

The team investigates the theft of a graphic comic book.

S4·E10 Core

Chinese Box

Dec 14, 2007 · 44 min

Don and the team are left with little recourse when a former FBI subcontractor takes a team member hostage.

S4·E11 Core

Breaking Point

Jan 11, 2008 · 40 min

Charlie's life is put in danger when Don brings him in on the case of a missing reporter.

S4·E12 Core

Power

Jan 18, 2008 · 43 min

A bad case becomes worse when Don and the team must pursue a police officer believed to have committed unspeakable crimes.

S4·E13 Core

Black Swan

Apr 4, 2008 · 41 min

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.

S4·E14 Core

Checkmate

Apr 11, 2008 · 44 min

Don runs into Robin Brooks during an investigation concerning informants and a chess master.

S4·E15 Core

End Game

Apr 25, 2008 · 43 min

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?

S4·E16 Core

Atomic No. 33

May 2, 2008 · 43 min

Don and the team must investigate a religious cult after scores of followers are poisoned.

S4·E17 Mytharc

Pay to Play

May 9, 2008 · 42 min

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.

S4·E18 Mytharc

When World's Collide

May 16, 2008 · 42 min

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.

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