Watch The Irrational Season HD Full Free on solarmovie.do. Watch The Irrational tv series online free. Alec Mercer is a world-renowned behavioral scientist who lends his expertise to an array of high-sta...Alec Mercer is a world-renowned behavioral scientist who lends his expertise to an array of high-stakes cases involving governments, law enforcement and corporations with his unique and unexpected approach to understanding human behavior.