This episode details the 1999 Tokaimura nuclear accident in Japan, where worker Hisashi Ouchi suffered a massive radiation dose after his company, JCO, ignored safety protocols. The hosts discuss how an uncontrolled fission reaction occurred due to improper uranium processing, leading to Ouchi’s agonizing 83-day death from radiation sickness. The story highlights the severe consequences of corporate negligence and the subsequent regulatory reforms in Japan’s nuclear industry.