The Irrational | Official Trailer | NBC

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. Returns Monday, January 29 at 10/9c on NBC and streaming next day on Peacock. » 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. The Irrational | Official Trailer | NBC NBC on YouTube