A car carrying an elderly couple goes off the side of a mountain and tumbles into oblivion on a beautiful sunny day in the Coronado National Monument. A note pulled from the twisted wreckage suggests the tragedy may have been a double suicide--but an autopsy later suggests something different. A deadly fire and a fatal home invasion may or may not have some connection to the terrible crash. And miles away in the desert, a savage rain has revealed something grisly and terrifying: two trash bags filled with human remains.