While doing research for a book, Jessica comes out to an archaeological dig in New Mexico, a potential site for the lost golden city of Coronado. However, she finds more troubling issues than the desert sun. When local Indian guide Raymond Two Crows is found dead at the top of a cliff, almost everyone concedes it was an accident and the head of the diggings, Gideon Armstrong, determines not to let the story leak out before he's found what he's looking for.
Archaeological venture, hunting for treasure, Indian in cloak warning off the archaeologists and murder. What's there not to like? The mystery of the dead body and it had fallen off the ledge, however he had died from drowning. In a desert? What a puzzle, what an episode. There's a myriad of characters like Robert Vaughan's tyrant expedition leader, his glamorous and drink loving wife, a writer who wants Jessica to write his Autobiography and others. Great setting, grand denouement- classic MSW episode.