Escape is not the exit.

When a prisoner transfer van is attacked, the cop in charge must fight those inside and outside while dealing with a silent foe: the icy temperatures.
Below Zero keeps every mind human — it fights its subject at zero distance. The story fights on E8/E9 of the E0–E14 reality ladder.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.