The discovery of a half-submerged body in one of Yellowstone's famed thermal features suspends all park research. On a strict schedule, archaeologist Rose Brashear sets out to prod the investigation along only to run afoul of a sexy stranger intent on distracting her from that goal. She makes a dangerous discovery at the historic Vigilante Mine that sets them on a collision course. Ex-soldier Savio Mendes has one objective in Montana, shut down the drug trafficking he's followed from Mexico City. But his plan hits a snag when he glimpses the senorita next door and sizzling chemistry erupts. Driven to forge a partnership as their troubles escalate, they stumble along. Rose hesitates to trust the man who just might be one of the bad guys and Savio is torn between loyalty to his job and pursuing the woman who offers the most intense adrenalin rush he's ever experienced.