RAG 109: Play
RAG 110: Smell
309: Waste Not
As the FBI tries to prove that a corrupt construction company is to blame because they have been burying containers of toxic waste under school playgrounds, they discover that the students in the school have a higher rate of cancer and neurological problems. Charlie tries to mathematically prove cause and effect between the pavement materials and the cancer clusters. Meanwhile, Millie, Charlie's new boss at Cal Sci, orders him to spend less time helping out the FBI and more time in their department.
Though the program was discontinued, Don and the FBI learn that someone is still able to make the conditioning work on former subjects and is using them to commit murder. Meanwhile, Larry announces he is taking a leave of absence from the university to travel on the next space station crew rotation.
311: Killer Chat
312: Nine Wives
When a teenage girl is found almost beaten to death, Don and his team discover that she escaped from a polygamous cult headed by a fundamentalist leader who is on the run from the FBI. They discover that the girl's mother, who is also a religious zealot, "gave" her daughter to the leader. Meanwhile, Charlie and Amita try to decipher a chart that was found at the leader's last known location, hoping it will lead them to him. Teri Polo ("Meet the Parents") guest stars as Rachel Willons, an agent from the California Bureau of Investigation who has been tracking the cult leader for over a decade.
313: Finder Keepers
The FBI asks Charlie to retrace the path of a marine salvage barge because Don suspects a murder took place on board. However, Charlie is put in a difficult situation when the National Security Agency (NSA) also requests his help to find the yacht for the confidential case they are working on. Meanwhile, Liz and Don try to figure out a way to make their personal relationship work after she is permanently transferred to LA. Kathy Najimy ("Veronica's Closet") returns as Dr. Millie Finch and Aya Sumika ("The O.C.") returns as special agent Liz Warner.
314: Take Out
During the investigation, the FBI discovers that the thieves steal the restaurant customer's credit cards so that they can run up charges at a fake Internet store and then route the money to offshore accounts. Charlie tries to pinpoint where the money is being laundered to prevent more restaurants from being hit. Meanwhile, in the wake of the Crystal Hoyle shooting, the FBI forces Don to talk to William Bradford, an occupational psychologist and FBI consultant whose specialty is trauma recovery.
816: Carbon Copy
817: The Gathering
819: Pay It Forward
821: Nanny Dearest
215: Don't Poke The Bear
311: Severed Ties
Multiple child abductions lead the team to a distraught mother who will stop at nothing to put her family back together. The story opens with a young girl being kidnapped from a playground at a park. SRU is called in, and shortly thereafter, another kid, an older boy, is also abducted by the same person. They quickly figure out that this is woman who has kidnapped the two children. This woman is actually their birth mother, who has been in prison for all of their lives. She was told by the parole board that if she pulled herself together once she was out of prison, and she got clean and got a job, she would have a chance to get her kids back. She was so focused on this goal for so many years. When she finally did get out of jail, promises kept, she was told that she would never get her children back. The mother snaps, and takes them on her own. The team works to talk her down, and see reason.
312: Follow The Leader
Two brothers get caught up in a white supremacy group that is planning a terrorist attack on the city. Danny and his younger brother have been involved in a white hate group. Danny has started rethinking the group and the ideology. Furthermore, he has met a woman who is helping him to evolve in terms of his thinking. But unfortunately his brother Trent has become fully indoctrinated. At a meeting at the compound, Danny realizes that they are actually planning an attack on the city. He informs the police, and SRU is on the case. Once SRU breaks onto the compound, Trent and Danny are pulled into a full on fire fight. The fight leads us to a series of backpacks that are headed into the city to hit an immigration swearing in ceremony.