An anonymous tipster slides an envelope under a parent’s door with a shocking revelation: a toxic train derailment from the 1970s may be contaminating the water in LeRoy. Environmental activist Erin Brockovich sends her team to investigate.

Listen to Hysterical on the Wondery App or wherever you get your podcasts. Binge all episodes of Hysterical early and ad-free right now by joining Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting wondery.com/links/hysterical/ now.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.