The Irrational, Reciprocity

We meet professor of behavioural science, Alec Mercer, as he's called upon to investigate the murder of a fashion influencer whose boyfriend has confessed to the crime.

Alec is approached by his old friend CJ, a prominent investigative journalist, who asks for his help after she is poisoned with a rare and deadly nerve agent.

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.

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. Marisa makes a significant discovery.

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.