Professor of behavioral science Alec Mercer is called upon to investigate the murder of a fashion influencer whose boyfriend, a decorated soldier and son of a Senator, has confessed to the crime. Mercer suspects there is more to the story than meets the eye.

Professor Mercer is approached by his old friend CJ, a prominent investigative journalist, who asks for his help after she is poisoned with rare and deadly nerve agent. With time running out, Mercer pieces together scant clues.

After a passenger plane crashes into the Potomac, suspicions focus immediately on the pilot. Alec and the team are asked to investigate the pilot’s personal motivations and piece together clues in the hopes of revealing the truth.

Alec and the team take on a kidnapping case at the request of a desperate father. Their investigation is hampered by a complicated family dynamic that slowly reveals everyone’s hidden motivations.

Alec and the team head to Las Vegas to help Camille, a former colleague turned expert poker player who’s been lured into danger.

Alec agrees to testify as an expert witness in a wrongful death trial for a friend of Kylie’s. As he faces an old nemesis, he discovers competing emotions around an accidental shooting. Marisa reaches a decision about the bombing investigation.

Alec’s first date with Rose turns into a 24-hour excursion when they find themselves taking on an investigation involving a forged masterpiece. Marisa and Kylie attempt to revive their friendship, which has faltered since Alec and Marisa’s divorce.

Alec takes a case involving a young burn victim and arson that forces him to confront some trauma from his past. Phoebe and Rizwan compete for an important research grant.

After witnessing a hit and run during a friend’s livestream, Alec and Kylie aim to prove it wasn’t an accident. As Marisa and Jace continue their investigation into the church bombing, they turn their sights on a prominent senator.

Alec and his team come face to face with the man who was put away for the church bombing 20 years earlier. Marisa and Kylie work together to save Alec, Phoebe and Rizwan. Jace makes a critical break in the case that changes everything.

Alec and Marisa are close to finding the culprit of the church bombing; Kylie gets an interview with the FBI, but is pulled into the investigation; Rose tracks down a witness; Phoebe and Rizwan make a discovery that sheds light on the truth.

When Rose goes missing, Alec quickly discovers this is no ordinary kidnapping; while Rose plays a dangerous game to stall for time, Alec takes matters into his own hands to find her.

The FBI needs Alec and his team to help stop a serial killer terrorizing the suburbs. As the bodies pile up, Alec helps the police uncover what’s really driving this murderer to his choice of victims.

When a rising star on Wall Street is killed during her hockey game, Alec must determine if it was an accident or murder. Alec and Rose find themselves on opposite sides of the case as they try to get to the heart of the victim’s cutthroat world.

Alec and Marisa attend a wedding of the daughter of a mutual friend that’s located inside a foreign embassy, where the father of the bride has been ensconced for diplomatic reasons. Their night off quickly turns into a murder investigation.

Simon’s mother asks Alec to help stop a suicide contagion when a third student death strikes the campus. Alec ask Marisa to help when he thinks there might be more to the case.

Alec’s foray into the field of science-based forecasting takes an unexpected turn when a forecaster’s statistical model predicts a train disaster. With time running out, Alec must take drastic measures to avert a mass casualty catastrophe.

Alec enters the world of K-Pop fandom when a superfan is murdered, and the only suspect is the pop star the fan idolizes. Alec and Rose dig beneath the surface to uncover what happened and, in the process, he uncovers more about her past.