A nuclear holocaust has turned Washington, DC, into a radioactive
wasteland. Mutant creatures freely roam the land while a select few
survivors live safely within underground shelters engineered by the
Vault-Tec Corporation. Your uneventful life inside the vault takes a
dramatic turn when your father mysteriously disappears. Looking for
answers, you begin a journey into the great unknown -- a test of
survival in an inhospitable environment.