The third one - Ginger Snaps Back: The Beginning - really takes back to the beginning, to the early 1800s (~1820 perhaps), the frontiers.
It has elements from The Thing: they are trapped in an isolated place, people are paranoid about each other, they have test to tell who is a werewolf (done smartly, they do a test but reveal the purpose only later).
The story itself is kinda predictable.
Plot twist: the black haired girl is called Ginger. Not.