The Human Experiment explores the threat of manufactured chemicals, and the role that the chemical industry is playing in the sickening of America by obscuring the harmful side effects of many of its products. From Oscar winner Sean Penn and Emmy-winning journalists Dana Nachman and Don Hardy, this documentary tells the personal stories of people who believe their lives have been affected by chemicals, and takes viewers to the front lines as activists go head to head with the powerful and well-funded chemical industry.