The fictional town of Grantville, West Virginia (modeled on the real West Virginia town of Mannington) and its power plant are displaced in space-time, through a side effect of a mysterious alien civilization.
Grantville, led by Mike Stearns, president of the local chapter of the United Mine Workers of America (UMWA), must cope with the town's space-time dislocation, the surrounding raging war, language barriers, and numerous social and political issues, including class conflict, witchcraft, feminism, the reformation and the counter-reformation, among many other factors. Grantville struggles to survive while trying to maintain technology sundered from twenty-first century resources.