PBS, with more than 330 member stations, offers all Americans the opportunity to experience the worlds of science, history, nature and public affairs; to hear diverse viewpoints; and to take front row seats to world-class drama and performances.

Dan becomes obsessed with a dying man's last words; Jasper finally decides to act on his own feelings.

Professor T

The Warrior Gene

Professor Jasper Tempest, a genius Cambridge University criminologist with OCD, unwittingly becomes an advisor to the police when he is caught up in a mysterious crime at the university.

S4 E6 | The Warrior Gene