On the banks of the Missouri River, the town of Yellow Earth and the Three Nations reservation prepare for an invasion—the ground beneath their feet is loaded with readily frackable shale oil and the minions of corporate energy are rushing to extract it. Tribal Chairman Harleigh Kildeer welcomes Big Oil with open arms, while county sheriff Will Crowder has to deal with the overnight influx of roughnecks, truckers, drug dealers, and sex workers.