List of Numbers episodes (season 2)

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Numbers Season 2
Numb3rs season 2 DVD.png
DVD cover
Country of origin United States
No. of episodes 24
Broadcast
Original channel CBS
Original run September 23, 2005 (2005-09-23) – May 19, 2006 (2006-05-19)
Home video release
DVD release date October 10, 2006 (2006-10-10)
Season chronology
← Previous
Season 1
Next →
Season 3

Season two of Numbers, and Americans television series, premiered on September 23, 2005 and its season finale was on May 19, 2006. Season two sees several changes to Don's FBI team: Terry Lake is reassigned to Washington DC and two new members join Don and David Sinclair: Megan Reeves and Colby Granger. Charlie is challenged on one of his long-standing pieces of mathematical work and also starts work on a new theory, Cognitive Emergence Theory. Larry sells his home and lives a nomadic lifestyle, while he becomes romantically involved with Megan. Amita receives an offer for an assistant professor position at Harvard University, but is plagued by doubt as her relationship with Charlie is challenged and her career is in upheaval. Alan begins work and dating again, though he struggles with the loss of his wife.

Episodes[edit]

No. in
series
No. in
season
Title Directed by Written by Original air date Production
code
U.S. viewers
(million)
14 1 "Judgment Call" Alex Zakrzewski Ken Sanzel September 23, 2005 (2005-09-23) 201 11.18[1]
When a judge's wife is shot dead, Don and his team look into the judge's cases to determine if one of his verdicts led to the murder.
Mathematics used: Scatterplot, Bayesian Spam Filtering, Buffon's needle and Conditional Probability
15 2 "Better or Worse" J. Miller Tobin Andrew Dettman September 30, 2005 (2005-09-30) 202 11.83[2]
Don and his team are called in when a woman attempting to rob a jewelry store in Beverly Hills is shot by a security guard.
Mathematics used: Von Neumann cellular automata, Farey sequence and pseudo-random numbers
16 3 "Obsession" John Behring Robert Port October 7, 2005 (2005-10-07) 203 11.40[3]
The FBI becomes involved in the stalking of a popular singer after she is threatened by an intruder in her house and reveals a series of threatening letters she has received through the mail.
Mathematics used: Trigonometry, curvelet analysis, Forensic Information System for Handwriting (FISH), spherical astronomy and art gallery problem
17 4 "Calculated Risk" Bill Eagles J. David Harden October 14, 2005 (2005-10-14) 204 11.09[4]
Don and Megan are called to the murder scene when the CFO of a powerful energy company—who was about to testify against her fellow executives—is murdered at her home and her son is the only witness.
Mathematics used: Conditional probability and compound interest
18 5 "Assassin" Bobby Roth Nicolas Falacci & Cheryl Heuton October 21, 2005 (2005-10-21) 205 11.17[5]
Along with David Sinclair and new FBI Agent Colby Granger, Don discovers a secret code during a raid and enlists Charlie's help to crack it.
Mathematics used: Transposition cipher, game theory and paper planes
19 6 "Soft Target" Andy Wolk Don McGill November 4, 2005 (2005-11-04) 206 11.13[6]
A week-long series of counter-terrorism exercises are put to the test by Homeland Security in Los Angeles, but the first one is violated by someone who releases a potentially lethal gas in the subway system.
Mathematics used: Percolation theory and diffusion
20 7 "Convergence" Dennis Smith Nicolas Falacci & Cheryl Heuton November 11, 2005 (2005-11-11) 207 12.36[7]
Don investigates a series of home invasions in which the thieves steal only high-end items from wealthy individuals. Meanwhile, an old adversary challenges Charlie's work.
Mathematics used: Group theory, data-mining, Fourier analysis, calendars, Three-dimensional trilateration, Set theory and projectile motion
21 8 "In Plain Sight" John Behring Julie Hébert November 18, 2005 (2005-11-18) 208 12.44[8]
Megan feels responsible for an agent's death following an explosion at a house where meth is being illegally produced and that the FBI targeted for a bust but the case takes a new direction after Charlie discovers that the drug kingpin was in the FBI office, looking for help in rescuing his supposedly kidnapped daughter.
Mathematics used: Flock behavior, steganography and matrices - error correction code
22 9 "Toxin" Jefery Levy Ken Sanzel November 25, 2005 (2005-11-25) 209 12.67[9]
Don learns that someone is poisoning non-prescription drugs made by a leading pharmaceutical company after four people nearly die from the tampering.
Mathematics used: Information theory - information entropy, graph theory - Seven Bridges of Königsberg and soap bubble theory with Steiner tree
23 10 "Bones of Contention" Jeannot Szwarc Christos Gage & Ruth Fletcher December 9, 2005 (2005-12-09) 210 12.53[10]
An archaeologist is killed in a museum, and the object she was studying is taken.
Mathematics used: Exponential decay and Voronoi diagram
24 11 "Scorched" Norberto Barba Sean Crouch December 16, 2005 (2005-12-16) 211 11.96[11]
An arsonist believed to be part of an extremist environmental group sets a fire at a car dealership that kills a salesman. The group's name is spray painted at the scene and is the fourth such fire, but the first to claim a life.
Mathematics used: Combustion and principal components analysis
25 12 "The OG" Rod Holcomb Andrew Dettman January 6, 2006 (2006-01-06) 212 13.93[12]
When Don and his team are called to the murder scene of a Los Angeles gang member, they learn the victim is a fellow agent who had been working undercover.
Mathematics used: Poisson distribution and social network analysis
26 13 "Double Down" Alex Zakrzewski Don McGill January 13, 2006 (2006-01-13) 213 12.98[13]
When the FBI is called to investigate a murder at a Los Angeles card club, it leads the agents to unravel a complicated card counting scheme involving a group of college students whose lives may now be at risk.
Mathematics used: Probability involving sampling without replacement, time series analysis and randomization
27 14 "Harvest" John Behring J. David Harden January 27, 2006 (2006-01-27) 214 13.22[14]
A South Asian teenager is found in the blood-spattered basement of an old downtown hotel where she was apparently being tortured. The investigation soon reveals that the girl, along with three other missing women, are victims of a black-market organ-harvesting scheme.
Mathematics used: Markov chain, ellipses and genetic variation
28 15 "The Running Man" Terrence O'Hara Ken Sanzel February 3, 2006 (2006-02-03) 215 13.31[15]
A DNA synthesizer with the capability of customizing diseases is stolen from the campus where Charlie teaches, and Don fears the thieves may be terrorists out to start or advance a bio-warfare program.
Mathematics used: Benford's law, continued fraction, astronomy, and probability
29 16 "Protest" Dennis Smith Nicolas Falacci & Cheryl Heuton March 3, 2006 (2006-03-03) 216 11.94[16]
A pedestrian is killed when a homemade bomb explodes under a car outside of a downtown Army recruiting center. The investigation reveals that a similar bombing occurred exactly 35 years ago at an ROTC office that killed two people. Things take a turn when Don discovers that his father was a member of an anti-war group believed to have been associated with the bombings.
Mathematics used: Graph theory, Ramsey numbers and recursive sequence
30 17 "Mind Games" Peter Markle Andrew Dettman March 10, 2006 (2006-03-10) 217 11.67[17]
When the bodies of three illegal-immigrant women are found on government-owned land in a wilderness area, Don investigates and learns a psychic led the police to the crime scene after allegedly seeing visions of the bodies. Charlie becomes extremely annoyed after learning that Don is using the psychic's help to solve the case, maintaining that true psychics do not exist.
Mathematics used: Fokker-Planck equation and Binomial theorem
31 18 "All's Fair" Rob Morrow Julie Hébert March 31, 2006 (2006-03-31) 218 12.09[18]
In an effort to find the murderer of an Iraqi woman, Don enlists the help of the victim's cousin, who lives in Los Angeles. Through her cousin, Don learns information about the woman's disturbing connection to Saddam Hussein, which could lead to her murderer. Meanwhile, Charlie reunites with an ex-girlfriend, a best-seller neuropsychologist.
Mathematics used: Density, Sudoku, logistic regression and game theory
32 19 "Dark Matter" Peter Ellis Don McGill April 7, 2006 (2006-04-07) 219 13.69[19]
As Don and his team investigate the motive behind two students's deadly school shooting, Charlie uses the school's radio frequency identification system to track the shooters's movements through the school's hallways. But the team are stunned when Charlie reveals that they're looking for a third shooter, someone with motive.
Mathematics used: RFID and optimization problem
33 20 "Guns and Roses" Stephen Gyllenhaal Robert Port April 21, 2006 (2006-04-21) 220 12.09[20]
When an ATF agent is found dead amid questionable circumstances, Don demands to take on the case, which revolves around an elaborate bank heist, after he learns the victim is his ex-girlfriend.
Mathematics used: Echolocation and biomathematics (DNA sequence alignment)
34 21 "Rampage" J. Miller Tobin Ken Sanzel April 28, 2006 (2006-04-28) 221 12.32[21]
After an unknown man opens fire in the FBI offices, causing carnage and destruction, Don and his team must investigate his motive and his connection to a dangerous arms dealer who is on trial. Meanwhile, Don soon learns that the bullet that killed the sex offender the team interviewed came from Colby's gun, forcing Colby to be put on desk duty for the time being.
Mathematics used: Chaos theory, Brownian Motion, Self-organized criticality, Venn diagram and tesseracts/hypercubes
35 22 "Backscatter" Bill Eagles Nicolas Falacci & Cheryl Heuton May 5, 2006 (2006-05-05) 222 12.01[22]
An FBI investigation into a computer hacking scam, which taps into a bank's system to gain access to customer's identities and financial assets, becomes personal for Don when the Russian mob spearheading it comes after him and threatens the safety of Charlie and Alan.
Mathematics used: Explicit and implicit functions, geometric progression and exponential growth. Neil Sloane's Integer Sequence Database was also used.
36 23 "Undercurrents" J. Miller Tobin J. David Harden May 12, 2006 (2006-05-12) 223 12.35[23]
Five young Chinese girls wash up on the shore; while Charlie works out where they came from, it emerges that one of the girls is carrying Avian Flu.
Mathematics used: Encoding, vector fields, kinematics, n-dimensional space and strange loop.
37 24 "Hot Shot" John Behring Barry Schindel May 19, 2006 (2006-05-19) 224 12.72[24]
When two women are found dead with an apparent drug overdose, Don suspects a serial killer. Charlie's help on Don's case is hindered by his bizarre dream about his mother.
Mathematics used: Directed graph, parabolic equations, probability and trajectory

References[edit]

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  2. ^ "Weekly Program Rankings". ABC Medianet. October 4, 2005. Retrieved February 10, 2010. 
  3. ^ "Weekly Program Rankings". ABC Medianet. October 14, 2005. Retrieved February 10, 2010. 
  4. ^ "Weekly Program Rankings". ABC Medianet. October 18, 2005. Retrieved February 10, 2010. 
  5. ^ "Weekly Program Rankings". ABC Medianet. October 25, 2007. Retrieved February 10, 2010. 
  6. ^ "Weekly Program Rankings". ABC Medianet. November 8, 2005. Retrieved February 10, 2010. 
  7. ^ "Weekly Program Rankings". ABC Medianet. November 15, 2005. Retrieved February 10, 2010. 
  8. ^ "Weekly Program Rankings". ABC Medianet. November 22, 2005. Retrieved February 10, 2010. 
  9. ^ "Weekly Program Rankings". ABC Medianet. November 29, 2005. Retrieved February 10, 2010. 
  10. ^ "Weekly Program Rankings". ABC Medianet. December 13, 2005. Retrieved February 10, 2010. 
  11. ^ "Weekly Program Rankings". ABC Medianet. December 20, 2005. Retrieved February 10, 2010. 
  12. ^ "CBS'S Places Second in Viewers and Key Demos in an Atypical Week of Primarily Rebroadcasrs Against Four Nights of Primetime Football". The Futon Critic. January 10, 2006. Retrieved February 10, 2010. 
  13. ^ "Weekly Program Rankings". ABC Medianet. January 18, 2006. Retrieved February 10, 2010. 
  14. ^ "Weekly Program Rankings". ABC Medianet. January 31, 2006. Retrieved February 10, 2010. 
  15. ^ "Weekly Program Rankings". ABC Medianet. February 7, 2006. Retrieved February 10, 2010. 
  16. ^ "Weekly Program Rankings". ABC Medianet. March 7, 2006. Retrieved February 10, 2010. 
  17. ^ "Weekly Program Rankings". ABC Medianet. March 14, 2006. Retrieved February 10, 2010. 
  18. ^ "Weekly Program Rankings". ABC Medianet. April 4, 2006. Retrieved February 10, 2010. 
  19. ^ "Weekly Program Rankings". ABC Medianet. April 11, 2006. Retrieved February 10, 2010. 
  20. ^ "Weekly Program Rankings". ABC Medianet. April 25, 2006. Retrieved February 10, 2010. 
  21. ^ "Weekly Program Rankings". ABC Medianet. May 2, 2006. Retrieved February 10, 2010. 
  22. ^ "Weekly Program Rankings". ABC Medianet. May 9, 2006. Retrieved February 10, 2010. 
  23. ^ "Weekly Program Rankings". ABC Medianet. May 16, 2006. Retrieved February 10, 2010. 
  24. ^ "Weekly Program Rankings". ABC Medianet. May 23, 2006. Retrieved February 10, 2010. 

External links[edit]