Descendants of emancipated slaves who settled on the Mississippi Gulf Coast, the residents of Turkey Creek have been stewards of the creek's rich wetland habitat for generations. Today, the town is surrounded by an airport, big-box stores, highways and an industrial canal which threatens both the community and its wetlands. When the graves of Derrick Evans's ancestors are bulldozed for the sprawling city of Gulfport, the Boston teacher returns home to stand up to powerful corporate interests and politicians alongside his neighbors over the course of a decade.