Season 2 - Episode 22 "When the Levee Breaks"

The storm clouds of war have burst forth upon the denizens of
Appalachia, and no one is safe. At Emmett Mountain, a desperate
defense is waged against an overwhelming force, while at
Foundation, an even more insidious plan is put into motion. 





Deep inside her lab, Major Lilith finds herself hunted…but who is
the predator…and who is the prey?





Day and the Overseer make final preparations to break into Vault
79, unaware of the greater dangers facing the region, and the
Colonel races against time as she leads a rescue force into the
mountains of the Savage Divide.





Not all is well at the Whitespring as Major Stein returns,
discovering that MODUS has plans of his own for the future of
Appalachia and Trader Red finds herself in the deepest depths of
the Mire…perhaps only steps away from her destiny.