Dr. Michael Mosley delves into the enigmatic and contentious military research facility, Porton Down, as it marks its centennial. He encounters both historical and contemporary chemical and biological weapons, uncovers the disturbing reality of experiments conducted on animals and humans, and explores how cutting-edge science and technology are being utilized to protect us from terrorist threats and rogue states.

Dr. Michael Mosley delves into the enigmatic and contentious military research facility, Porton Down, as it marks its centennial. He encounters both historical and contemporary chemical and biological weapons, uncovers the disturbing reality of experiments conducted on animals and humans, and explores how cutting-edge science and technology are being utilized to protect us from terrorist threats and rogue states.