This biography documents the life of Rachel Louise Carson who was an American marine biologist, author, and conservationist. Her book Silent Spring, and other writings, are widely recognised to be responsible for advancing the global environmental movement. Carson began her career as an aquatic biologist in the United States Bureau of Fisheries, and became a full-time nature writer in the 1950s, turning her attention to conservation, especially some problems that she believed were caused by synthetic pesticides. The result was Silent Spring, published in 1962, which brought environmental concerns to the public at large. Although the book was met with vicious attacks from chemical companies, Carson spurred a reversal in national pesticide policy, which led to a nationwide ban on DDT and other pesticides, and also inspired a grassroots environmental movement that led to the creation of the Environmental Protection Agency. This film is an intimate portrait of the woman whose groundbreaking work revolutionised our relationship with the natural world.