The Colony (2013) is a Canadian post-apocalyptic sci-fi thriller where survivors of a new ice age struggle to endure underground — until a rescue mission uncovers a brutal, cannibalistic threat. Blending dystopian survival, frozen isolation, and horror violence, it mixes claustrophobic tension with action-driven spectacle.

Från IMDB:
Forced underground by the next ice age, a struggling outpost of survivors must fight to preserve humanity against a threat even more savage than nature.