201: Judgment Call
When a judge's wife is shot and killed, Don and his team look into the judge's cases to determine if one of his verdicts led to the murder. Using the judge's past rulings and Megan's expertise in profiling, Charlie creates a mathematical theory to identify the two most probable suspects from the case files. However, when the team discovers a link between the 2 suspects, the investigation goes in an unexpected direction.
When an alleged stalker breaks into a famous pop singer's house, Don and his team are brought in to lead the investigation. Using the fan letters she received as evidence, Don turns to Charlie, who uses Forensic Information System for Handwriting and discovers that there are two senders -- one of them a copycat. The agents are thrown another curve when a celebrity photographer taking photos of the pop princess' house is murdered, and they learn that the pop princess may not be so innocent.
204: Calculated Risk
Don and Megan are called to a murder scene when the CFO of a powerful energy company, who was about to testify against fellow executives for stock fraud, is found dead at home with the only witness being her 11-year-old son. Knowing there could be thousands of disgruntled ex-employees, Don calls on Charlie to help narrow down the list of potential suspects, but is surprised when the investigation takes them in a different direction.
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. Using an elaborate game theory model called "hide and seek," Charlie discovers that it is a plan for the assassination of a Columbian exile living in Los Angeles. Charlie and Megan combine their expertise and work closely together to try to prevent the murder from taking place. Elizabeth Peña guest stars as Sonya Benavides, Minister Counselor from Colombia.
206: Soft Target
A week-long series of counter-terrorism exercises are put to the test by Homeland Security in Los Angeles, but when the first one is violated by someone who releases a potentially lethal gas in the subway system, Don and his team are called in to find the culprit. Further investigation leads them to an unlikely suspect trying to prove a point about the city's lack of preparedness.
When the number of violent home invasions in an upscale neighborhood begins to escalate, Don and his agents are called in after it is discovered that the victims are being tracked through the GPS in their cell phones. To help solve the case, Charlie applies a data-mining procedure to find a link between the robberies and uncovers a connection between the victim's insurance and wireless companies which exposes a much larger operation. Meanwhile, a rival mathematician, Marshall Penfield, challenges one of Charlie's mathematical findings which makes Charlie question whether he is spending too much time working with the FBI and not enough time making strides in his own field. Colin Hanks ("Orange County") guest stars as Charlie's nemesis and fellow mathematician, Marshall Penfield.
208: In Plain Sight
Megan and a team of FBI agents bust a major methamphetamine lab, but lose the kingpin when he sets off a bomb and escapes, killing one of the agents under Megan's command. But when Charlie gets his hands on a computer hard drive left behind, he uncovers a disturbing photo and, against Don's wishes, pursues its origin.
When several people in Los Angeles suffer from seizures as a result of product tampering of over-the-counter medications, Don and his team discover that a former chemist from a large pharmaceutical company is to blame. While tracing the culprit to the Sibley mountains, the team meets up with Special Agent Edgerton (Lou Diamond Phillips), who is tracking a cattle rancher turned-federal fugitive for selling tainted beef and killing a U.S. Marshall. Megan figures out that their meeting isn't random, as the two fugitives have something in common.
210: Bones Of Contention
When a young researcher at the Heritage Museum is found dead, Don and Megan are called to the scene to investigate. With Charlie's help, they discover that she had been investigating the origin of a human skull found on Wiyana Native American land, which has now gone missing. In searching for the skull and the murderer, they encounter a political web of cover ups and deceit involving the Indian Chief. Academy Award nominee Graham Greene ("Dances with Wolves") guest stars as Chief Michael Clearwater who fears the human skull may challenge the tribe's historic records.
When a fire destroys an SUV dealership and kills a young salesman, Don and his team are called in as there is evidence the fire could be linked to a group of radical environmentalists. With the help of Cal Sci's Professor Waldie, Charlie is able to "fireprint" the fire which helps the FBI determine who is responsible.
212: The Og
When Don and his team are called to the murder scene of a Los Angeles gang member, they learn that it is a fellow agent who had been working undercover. Without exposing the agent's cover, Don must investigate his murder by a rival gang and try to crack the gangs' leadership and territories to find the suspect. But the agents are surprised when they learn who is responsible for the source of the rivalry. Will Patton ("The Agency") guest stars as LAPD Lieutenant Gary Walker, who is in charge of LAPD's Gang Impact Team.
213: Double Down
When the FBI is called to investigate a murder at a Los Angeles card club, it leads Don and his agents to unravel a complicated card counting scheme involving a group of college students whose lives may now be at risk. Professional poker player Annie Duke guest stars as a blackjack dealer in the Los Angeles card club.
An anonymous tip leads Don and David to the basement of a hotel in Los Angeles' garment district where they uncover a bloody scene and a traumatized young girl from India. Sensing the girl's connection with Amita, Megan recruits her to help get information out of the girl who is too terrified to speak. When the agents learn that she was selling one of her kidneys on the black market and witnessed one girl's death, the agents must act quickly to find her missing sister and a fourth girl involved in the trafficking ring before it is too late.
215: The Running Man
When a highly valuable piece of equipment is stolen from the Cal Sci science lab, the suspect is the school's track star, and "the next Charlie Eppes," who works closely with Charlie and Larry. Although, quickly defended by them, further investigation by Don and his team reveals that the student is not who he says he is and may be involved in an elaborate scheme involving stealing equipment Larry has been using for research containing data worth millions.
Don and his team investigate a deadly anti-war bombing which bears the stamp of a 1970's anti-war activist who went missing 30 years ago after being accused of planting a bomb that killed two people. Retired Agent Thomas Larson, who tried to solve the case 30 years ago, turns up to help but questions Don's loyalty to the case when it is revealed that Don's father, Alan, knew the radical activist and participated in demonstrations with him, causing tension between father and son. Robert Forster ("Jackie Brown") portrays retired Agent Thomas Larson who was on the anti-war bombing case 30 years ago.
217: Mind Games
Don and his agents are called when a search team finds three dead women in the wilderness amid questionable circumstances. The case becomes more suspicious when Don is told the team was led to the crime scene by a psychic. When the psychic offers to help the FBI solve the crime, Charlie is determined to prove that Kraft's so-called psychic abilities are no match to Charlie's mathematical findings. Multiple Emmy Award nominee John Glover ("Smallville") portrays Samuel Kraft, a psychic who leads a search team to a crime scene in the wilderness.
218: All's Fair
In an effort to find the murderer of the Iraqi woman, Don enlists the help of the victim's cousin, Nasreen, who lives in Los Angeles. Through Nasreen, Don learns information about the woman's disturbing connection to Saddam Hussein, which could lead to her murderer. Meanwhile, Charlie rekindles a romantic relationship when his exgirlfriend comes to visit.
219: Dark Matter
As Don and his team investigate the motive behind two students' deadly school shooting, Charlie uses the school's radio frequency identification system to track the shooters' movements through the school's hallways. But when Charlie notices an abnormal pattern, Don and his agents reevaluate the evidence and discover an unlikely third participant.
220: Guns And Roses
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. As the pressure of his job mounts, Don recognizes the impact his professional life has on his personal life and he decides to investigate his flirtation with AUSA Robin Brooks.
After an unknown man opens fire in the FBI offices, Don and his team must investigate his motive and his connection to a dangerous arms dealer who is on trial. After almost getting shot, Charlie is visibly shaken and reluctant to return to the offices, hindering his contribution in the case.
To prevent the potential spread of the Avian flu, Don puts a rush on the investigation, which takes a surprising turn when David and Colby discover a clue on one of the girls' bodies. Meanwhile, Amita considers a move to Harvard University, which causes Charlie to re-evaluate his feelings for her.
224: Hot Shot
The details surrounding a young woman's death suggests to Don and his team that she could have been murdered by a serial killer. Upon further investigation, they uncover disturbing evidence that incriminates their suspect but also puts Don's life in danger. Meanwhile, Charlie dreams about his late mother, which causes him to regret his introverted behavior when she was dying. Academy Award winner JoBeth Williams ("The Client") portrays the late Margaret Eppes and Academy Award winner Olympia Dukakis ("Moonstruck") portrays Charlotte Yates, the mother of the suspect.