Based on true events, the film is about the story of a certain case in which a notable attorney, who work for a big company, decide to help a farmer. Bilott sues a very big chemical company, DuPont. Only his perseverance allow him to success. A fight that endangers his health. There is a scary reality about the film: The claim that is it believed that PFOA is presented in the blood of the 99% of humans. This is very frightening and worrying. The acting of Mark Ruffalo is simply impressive.