Jesse L. Martin shares a first look at the all-new season of crime drama The Irrational. Professor Alec Mercer is back in action, solving the mystery of human behavior. Premieres Tuesday, October 8 at 10/9c on NBC and streaming next day on Peacock. #NBC #TheIrrational #JesseLMartin » Subscribe for More: NBC ON SOCIAL: YouTube: Twitter: Facebook: Instagram: Find NBC trailers, full episode highlights, previews, promos, clips, and digital exclusives here. ABOUT THE IRRATIONAL: Jesse L. Martin stars as Alec Mercer - an expert in human behavior who has solving crime down to a science in the smart new drama The Irrational. Premieres Monday, September 25 at 10/9c on NBC and streaming the next day on Peacock. Jesse L. Martin Goes Behind the Scenes of the Captivating New Season of The Irrational | First Look NBC on YouTube
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