Josh Futturman, a janitor by day and a gamer by night, is recruited by mysterious visitors to travel through time to prevent the extinction of humanity.
Enforcing his own brand of justice, U.S. Marshal Raylan Givens, a strong-willed, quiet law-man haunted by his past, returns to his native town to see that justice is served to those in need.
During the Great Depression, an Oklahoma farm boy and a charismatic minister learn that they are key players in a proxy war being fought between Heaven and Hell.