After the burned body of a mixed-blood boy, Johnnie Sanders, is discovered in 1878 Dodge City, Kansas, part-time policeman Wyatt Earp enlists the help of his professional-gambler friend Doc Holliday.
The sole survivor of a crew sent to explore a new planet, Jesuit priest Emilio Sandoz discovers an alien civilization that raises questions about the very essence of humanity, an encounter that leads Sandoz to a public inquisition and the destruction of his faith