Newly graduated from the Montana School of Mines, Sloan Stafford has finally realized her dream of being a ranger in Yellowstone National Park. But her worst fears are realized when angry FTO, Reno Blackwolf, thinks of women as nothing more than a nuisance, poisoning his park. After the fires of '88 left Yellowstone in ruin, Blackwolf, a full-blooded Shoshoni, had turned his back on the "old ways." When strange happenings end in murder, Reno is forced to confront his past and place his trust in Sloan to solve the mystery of BAD MEDICINE.