Basedonthe9thcircleofhellinDante'sInferno,BlackGardenbeginsonChristmasEveinthenearfuture.It'seightdaysaftertheendofWorldWarIIIandahandfulofsurvivorswaittodie,exceptone.AsKatemakescontactwithanunknownradiobroadcaster,shetravelsonfootinsearchofhisbroadcastlocationuntilthetrueintentionofthevoicerevealshimselfaaa