No one called her Mud in Silicon Valley. There, she was Mae, a high-powered professional who had left her Kiowa roots behind a decade ago. But a cryptic voice message from her grandfather, James Sawpole, telling her to come home sounds so wrong that she catches the next plane to Oklahoma.

She never expected to be plunged into a web of theft, betrayal, and murder. Mud discovers a tribe in disarray. Fracking is damaging their ancestral lands, Kiowa families are being forced to sell off their artifacts, and frackers have threatened to kill her grandfather over his water rights.

When Mud and her cousin Denny discover her grandfather missing, accused of stealing the valuable Jefferson Peace medal from the tribe museum - and stumble across a body in his work room - Mud has no choice but to search for answers. Mud sets out into the Wildlife Refuge, determined to clear her grandfather's name and identify the killer.