Season 2 - Episode 15 "Wrong Place, Wrong Time"

“The Butterfly Effect,” the idea that even the smallest action or event can have significant repercussions thousands of miles away or many years in the future. On the day of the Great War, a global disaster which saw over a billion souls die in Nuclear Fire, the fate of a single Vertibird over the skies of Appalachia would start a chain of events which would reveal hidden agendas and dark secrets...and threaten a greater calamity for us all.

And a newcomer to the region, running from her own past, finds herself a pawn in the greater game.