List of Numbers episodes (season 6)
|Numbers Season 6|
|Country of origin||United States|
|No. of episodes||16|
|Original run||September 25, 2009– March 12, 2010|
|Home video release|
|DVD release date||August 10, 2010|
|Title||Directed by||Written by||Original air date||Production
|103||1||"Hangman"||Ken Sanzel||Ken Sanzel||September 25, 2009||601||8.10|
While Charlie waits for an answer to the question he popped to Amita, Don and his team try to hunt down a sniper intent on killing someone under FBI protection.
Mathematics used: Unexpected hanging paradox and Barberpole illusion
|104||2||"Friendly Fire"||Rod Holcomb||Mark Llewellyn & Robert David Port||October 2, 2009||602||7.85|
Two members of a unit led by Don's former mentor are killed during a shootout with bank robbers. The bank robbers refuse to take responsibility of the killings and Charlie recreates the shootout to find out how they died while Don must face up to the fact that his former mentor may be dirty.
Mathematics used: Triangulation
|105||3||"7 Men Out"||Alex Zakrzewski||Don McGill||October 9, 2009||603||7.34|
To find the person behind a deadly gambling ring that is running a high-stakes Russian roulette tournament, Don and his team are called in to investigate. Elsewhere, Don and Charlie become concerned over Alan's financial health.
Mathematics used: IP traceback
|106||4||"Where Credit's Due"||Dennis Smith||Andy Dettmann||October 16, 2009||604||7.77|
The team investigates several deaths that turn out to be copies of a soon-to-be-released movie, while Larry goes on his own personal adventure. Alan continues his job search.
Mathematics used: Triangulation
|107||5||"Hydra"||Ralph Hemecker||Sean Crouch||October 23, 2009||605||8.05|
The team attempts to find the daughter of a geneticist whom 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.
Mathematics used: Wavelets, Acoustics and Cake cutting
|108||6||"Dreamland"||Stephen Gyllenhaal||Nicolas Falacci & Cheryl Heuton||October 30, 2009||606||7.74|
A woman's corpse turns up at a decommissioned air base.
Mathematics used: Electric Fields for Three Point Charges, Cyclotrons and Gaussian Laser Modes
|109||7||"Shadow Markets"||Julie Hébert||Julie Hébert||November 6, 2009||607||8.09|
|In order to find a cyber crime lord, the team conducts an undercover sting. The operation is prevented by a brilliant hacker whose goal is to take over the Internet black market. However, his actions put him in a dangerous online war that might lead to murder.|
|110||8||"Ultimatum"||Dennis Smith||Robert David Port||November 13, 2009||608||8.16|
In the middle of a case where he is tracking down a criminal in charge of a heroin ring inside a prison, Agent Ian Edgerton unexpectedly turns into the murder suspect when the informant he meets with winds up dead, sending Edgerton over the edge when he takes a member of Don's team hostage.
Mathematics used: Pursuit-evasion, Game theory and Ultimatum game
|111||9||"Con Job"||Ralph Hemecker||Don McGill||November 20, 2009||609||7.84|
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.
Mathematics used: Packet injection, Man-in-the-middle attack and Combinatorial game theory
|112||10||"Old Soldiers"||Ken Sanzel||Steve Cohen||December 4, 2009||610||7.38|
Agent Roger Bloom, who worked on the Cooper case, is brought in to help the team when they foil a robbery of an armored car full of Federal Reserve money and recover bills that trace back to the infamous D.B. Cooper heist.
Mathematics used: Probabilistic risk assessment
|113||11||"Scratch"||Stephen Gyllenhaal||Mary Leah Sutton||January 8, 2010||611||9.32|
|The team investigates 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.|
|114||12||"Arm in Arms"||Gwyneth Horder-Payton||Andy Dettmann||January 15, 2010||612||9.65|
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.
Mathematics used: Reverse trajectory, 4D mapping, Combinatorial optimization and Pigeonhole principle
|115||13||"Devil Girl"||Stephen Gyllenhaal||Julie Hébert||January 29, 2010||613||8.70|
The team searches for a serial killer who is targeting men that solicit prostitutes. Also, Colby and Nikki deal with the aftermath of a car crash when they have an accident during the investigation.
Mathematics used: Geo-profiling and Scaled gradient projection
|116||14||"And the Winner Is…"||Ralph Hemecker||Gary Rieck||February 5, 2010||614||9.18|
The team gets a taste of the limelight when they search for jewels worth millions that have been stolen during an awards show broadcast. In addition, Don revisits an old case that is haunting him, and Larry returns from his adventure in the desert.
Mathematics used: Retrograde analysis and Crowd flux dynamics
|117||15||"Growin' Up"||Rob Morrow||Robert Port||March 5, 2010||615||8.10|
|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.|
|118||16||"Cause and Effect"||Nicolas Falacci||Nicolas Falacci & Cheryl Heuton||March 12, 2010||616||8.74|
|The team try to find Don's stolen gun, which is being used in a series of vigilante killings. Meanwhile, Charlie and Amita get married and Don decides on the direction he wants to take in life.|
- Seidman, Robert (September 29, 2009). "CBS wins premiere week in viewers and adults 25-54". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (October 6, 2009). "CSB Wins in Viewers and Adults 25-54 for second week in a row, NCIS reigns as the No. 1 program". TV by the Numbers. Retrieved February 11, 2010.
- Gorman, Bill (October 13, 2009). "CBS Dominates The Week In Viewers And Key Demos". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (October 17, 2009). "Updated: TV Ratings: Yankees win; Ugly Betty ratings ugly; Jay Leno hits lows". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (October 24, 2009). "Updated TV Ratings: Dollhouse hits low note; Medium wins with adults 18-49". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (October 31, 2009). "TV Ratings: House repeat 62.5% better than a new Dollhouse; Ghost Whisperer wins". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (November 7, 2009). "Updated TV Ratings: Rihanna sings for ABC, 20/20 wins with youth; Smallville viewing rising". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (November 14, 2009). "TV Ratings: Ghost Whisperer leads night with 18-49; Smallville hits season high with viewers". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (November 21, 2009). "TV Ratings: Ghost Whisperer leads night with adults 18-49; Shrek the Third helps ABC". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (December 5, 2009). "TV Ratings: Dollhouse Returns Quietly, Ugly Betty Bounces Back (33%)". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (January 9, 2010). "TV Ratings: CBS Leads; 20/20, Dateline Strong Shark Tank returns". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (January 16, 2010). "TV Ratings: CBS Wins; Supernanny and Shark Tank Improve". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (January 30, 2010). "TV Ratings: CBS Wins Slow Friday; Smallville returns; Dollhouse finishes". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (February 6, 2010). "TV Ratings: CBS Wins Friday Again; Two New Hours of Smallville Are Better than One for CW". TV by the Numbers. Retrieved February 11, 2010.
- Seidman, Robert (March 6, 2010). "TV Ratings: Medium, Dateline Lead Night; Who Do You Think You Are Debuts". TV by the Numbers. Retrieved March 12, 2010.
- Seidman, Robert (March 13, 2010). "TV Ratings: Numb3rs Counted For the Last Time?". TV by the Numbers. Retrieved March 13, 2010.