The Core Of It The Lightman Group investigates a murder case where a woman with multiple personalities may either be a witness or the killer. Meanwhile, the U.S. government hires the firm to interrogate a potential Supreme Court nominee.
Truth Or Consequences Zoe enlists the Lightman Group to investigate a star college football player accused of statutory rape. Meanwhile, Foster and Loker travel to a religious compound to find out whether it's actually a nefarious cult.
Control Factor While on vacation in Mexico, Lightman and Emily become involved in the case of a missing American woman. Back home, Foster investigates tainted blood in D.C.-area hospitals with Lightman's rival, Jack Rader.
Honey 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 drastic measures that put the team's lives in danger.
Grievous Bodily Harm A face from Lightman's past pulls him into a dangerous criminal conspiracy, testing his friendship and loyalty. Meanwhile, The Lightman Group investigates a high school student's homicidal threats.
Lack of Candor Lightman and his team investigate the murder of a government-protected witness, which unearths dangerous secrets about Reynolds' past. Ultimately, Lightman puts himself at risk trying to save Reynolds' career - and life.
Black Friday A troubled teenager believes he was abducted as a baby, and the Lightman Group helps him uncover the secrets of his past. Meanwhile, Loker investigates the origin of a deadly stampede that occurred at an electronics megastore on the day after Thanksgiving.
Secret Santa During the holiday season, Lightman goes to Afghanistan to assist in a mission to rescue two captured marines, and his only source of intelligence is an American expatriate.
Fold Equity Lightman, Foster and Reynolds go to Las Vegas to help locate a missing finalist in the World Series of Poker. Lightman uses his skills to reach beyond the other finalists' 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.
Tractor Man 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. Meanwhile, a third-grade field trip gets stuck in the Lightman Group offices, and Loker has to play babysitter.
