the ending (spoilers)
So I'm assuming Alex got back to the US, but how could she if...
1. She is walking train tracks in the middle of nowhere and she doesn't know where she is.
2. She has no passport
3. She just got beaten senseless by Vlad
4. She doesn't speak the language of wherever she is
5. She has no money
6. In another scene soldiers took Claire off the train to rape her, yet beaten Alex is safe???
I can't see there being a sequel, so why didn't they just kill her off???