Numb3rs
FBI-agent Don Eppes (Rob Morrow) har et hemmelig våpen i sin yngre bror, Charlie (David Krumholtz), et mattegeni som bruker ligninger til å løse forbrytelser.
Hangman
Don and the team must protect high-profile activist Benjamin Polk at a political rally, but it soon becomes a manhunt when they search for a sniper trying to kill Polk. Also, Charlie awaits an answer from Amita, on the sixth season premiere.
Friendly Fire
When two FBI agents, part of a unit headed by Don's former mentor, are killed during a shootout with bank robbers, the team must investigate what exactly happened. Also, Charlie and Amita worry when Larry opts not to attend a conference in Geneva.
7 Men Out
Don and his team are called in to investigate who is behind a deadly gambling ring that is running a high-stakes Russian roulette tournament. Also, Don and Charlie become concerned about Alan's financial health.
Hydra
The team searches for a geneticist's daughter who they suspect was abducted by her unstable mother but become more concerned when they think the young girl may be a clone. Also, Charlie and Amita talk about having kids and Liz reveals a dark secret.
Dreamland
When strange, almost paranormal happenings are observed at a decommissioned air base, the spooky occurrences take on a decidedly different tone when the team is brought in to investigate the mystery of a dead woman found there.
Shadow Markets
The team conducts an undercover sting to locate a cyber crime lord, but the operation is foiled by a charming, brilliant hacker whose desire to take over the online black markets puts him in a dangerous online turf war that could lead to murder.
Ultimatum
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.
Con Job
When robbers hit a diamond exchange and take hostages, Don and the team find an unlikely ally in convict John Buckley, who may help the team's investigation when they believe the men are copying Buckley's criminal strategies.
Old Soldiers
When the team foils a robbery of an armored car full of Federal Reserve money and recover bills that trace back to the infamous D.B. Cooper heist, they call on Agent Roger Bloom, who worked on the Cooper case, for help with the investigation.
Scratch
Don and the team try their luck at investigating the theft of scratch-off lottery tickets, but the stakes are raised when one of the culprits killed at a botched robbery turns out to be a former lottery winner.
Arm In Arms
The team searches for a lost shipment of high-caliber firearms when one of the weapons is responsible for random killings throughout the city. Also, Charlie and Amita disagree on a wedding date while Don re-evaluates his relationship with Robin.
Devil Girl
The team searches for a serial killer who is targeting men who solicit prostitutes. Also, Colby and Nikki deal with the aftermath of a car crash when they have an accident during the investigation.
And The Winner Is...
The team gets a taste of the limelight when they search for jewels worth millions that have been stolen during an awards show broadcast. Also, Don revisits an old case that is haunting him, and Larry returns from his adventure in the desert.
Growin' Up
The team investigates the deaths of two men who were part of a group of friends that had been sexually assaulted by a teacher when they were young boys.
Cause And Effect
Charlie and Amita get married and begin preparations for their London adventure, but they put a slight hold on their plans when they assist Don to track down the whereabouts of his gun after it goes missing, on the sixth season finale.
