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.
In 1879, lawman Wyatt Earp, accompanied by his wife and his brothers, leaves Dodge City and heads to Tombstone, Arizona, where he takes a job as deputy sheriff.