Since her diagnosis for bladder cancer at 20, biologist/activist Sandra Steingraber has spent her life studying, and striving to raise public awareness of, carcinogens in the environment. This documentary adapted from her book follows her for a year as she deals with a possible recurrence and stumps across North America to get out her message. 85 min. Soundtrack: English; Subtitles: English (SDH), French, Spanish; audio commentary; featurettes.