Entering its intriguing second season, Lie to Me is the drama series inspired by the scientific discoveries of Dr. Paul Ekman, a real-life psychologist who can read clues embedded in the human face, body and voice to expose the truth and lies in criminal investigations. Season two continues with new cases, new lies, and life-changing situations. These cases require the team to look further and search deeper, not only to determine who is lying but why.
A young woman approaches Lightman at his book signing because she thinks she is innocent of committing a murder. Yet she has multiple personalities, and Lightman takes on her case because he believes one of her other personalities may be responsible. He discovers that the woman was a witness to the murder.
Lightman passes off helping Agent Reynolds vet a potential Supreme Court nominee, and gives it to Torres to handle. The nominee does not treat Torres with respect because she is so young. Torres learns to put her preconceived judgments about the man aside when she analyzes the facts.
Zoe informs Lightman that she is taking their daughter Emily and moving to Chicago to open a law firm. Lightman buys out her stake in The Lightman Group so that she can start her own practice in town.
Zoe enlists Lightman to help with her client -- a 21 year-old star college football player who has been accused of statutory rape with a 16 year-old girl. An added angle of the case is that the accused is black, while the girl is white. Was there racial bias in the charge? The case hits home for Lightman, who learns that his daughter Emily was friends with the group of girls who attend these college fraternity parties. Through the course of their investigation, Lightman and Torres determine that Zoe's client was set-up by the girl, whose friends leaked the video of the hookup. He had no idea that she was underage.
Meanwhile, Foster and Loker travel to a religious compound to determine whether its claim of IRS exemption is valid. They believe it is a nefarious cult. When Foster facilitates the escape of one woman and her children, she faces the wrath of both Loker and the government.
While on vacation in Mexico with Emily, Lightman becomes involved in the case of a missing American woman who's a single mother. Upon investigation, Lightman learns that the mother got herself involved with an illegal fertility broker and he manages to find her just in time.
Back home, Foster investigates D.C.-area hospitals with Lightman's rival, Jack Rader. They try to uncover the reason that five people have grown gravely ill after receiving blood transfusions.
Eric Matheson, a man suspected of killing his wife, is brought in for questioning by the Lightman Group. Determined to prove his innocence, he takes Lightman hostage. Matheson claims to be innocent and wants Lightman to help find his wife's killer.
Lightman finds himself embroiled in a counterfeit money scam when an old friend needs him to use his lie-detecting powers for personal gain. This tests Lightman's friendship and loyalty.
Loker and Torres work on a case at a school where a student has made a video homicidal threat to "end it all" in three days.
When a government-protected witness is murdered, the FBI hires The Lightman Group to determine who leaked the witness' whereabouts to the killers. They also have to protect Agent Reynolds, the star witness in the case. When Reynolds refuses to testify in the case, Lightman and Foster learn he is hiding something about his past undercover work for the FBI.
A troubled teenager believes he was abducted as a baby. Lightman and Foster attempt to help him uncover the secrets of his past and reunite him with his biological family.
Meanwhile, Loker investigates a deadly stampede that occurred at a mega-store on "Black Friday," the day after Thanksgiving. He uses his expertise in group behavior to determine the cause.
During the holiday season, Lightman is sent to Afghanistan to interrogate an American-turned-Taliban prisoner on the whereabouts of two captured marines.
Back in the U.S., his team tries to help a teacher who was fired for supposedly telling a student that Santa doesn't exist. And Emily plans a big Lightman Group Christmas party.
Lightman, Foster and Reynolds travel to Las Vegas to help locate a missing finalist in the World Series of Poker. Lightman uses his skills to read the other competitors' poker faces to figure out which one knows about the disappearance. Meanwhile, Loker and Torres analyze Loker's new relationship, and as a result, get closer to each other.
During a political protest in Washington, D.C., a disgruntled farmer parks his explosives-packed tractor near the Treasury Department building, forcing Lightman and his team to make some crucial life-or-death decisions. Either he is a peaceful protestor who should not be shot at, or he is a dangerous bomber that needs to be killed. Lightman learns that the farmer is merely a distraction for another bomber attempting to strike elsewhere in the city, and the team diffuses both situations.
A third-grade field trip gets stuck in the Lightman Group offices, and Loker has to play babysitter.
Lightman (Tim Roth) plays a dangerous game of cat and mouse with a brilliant, charming psychology graduate student whom Lightman identifies as a psychopath. When nobody believes him, Lightman sets out to prove the doubters wrong and catch the psychopath before he kills again. Complicating matters is Lightman’s former mentor, a renowned psychologist who, also fooled by the charismatic young man, is protecting him for personal and professional reasons. Meanwhile, Loker (Brendan Hines) and Torres (Monica Raymund) travel to a small town to look into a UFO sighting.
After Lightman’s (Tim Roth) former Pentagon colleague is killed in a car bomb, Lightman and Foster (Kelli Williams) are forced to revisit a series of events from their past, including the therapy sessions that brought them together.
Lightman (Tim Roth) is called to testify in the trial of a beautiful widow (guest-star George) accused of murdering her much older husband.
Lightman (Tim Roth) and the team use cutting-edge science and virtual-reality technology to save the life of an Iraq war veteran and his family. In doing so, Lightman confronts unsettling truths about his own past.
The eyes say everything.
Torres revisits her troubled past.
After a young woman dies at a gubernatorial campaign rally inVirginia, The Lightman (Tim Roth) Group is hired to assess whether the case is a failed assassination attempt or a well-disguised murder plot.
Lightman (Tim Roth) risks being exposed as a gambler in an underground fight club when one of the fighters is found dead. Meanwhile, Foster’s (Kelli Williams) romance with Burns (guest star Max Martini) hits a snag when she uncovers a troubling secret.
Lightman and Zoe must re-visit a case from 17 years ago, when they are asked to witness Jason Wilkie's execution. With the help of Cal and Zoe, Jason was convicted of the murder of 8-year-old Rex Sheridan, but when the Sheridan family is targeted again they must face the possibility that they might have sent an innocent man to his death. Lightman becomes determined to uncover the truth once and for all.
Foster's boyfriend, Dr. Burns is kidnapped and Lightman works with his mysterious ex-partner to find him.
A missing woman is linked to criminal activity in the adult film industry.
Lightman's relationship with Reynolds and the FBI is tested.