In the movie The Colony (2013), there is a scene when 3 men travel from one colony to another because they've lost contact with each other.
On the way there, the men come across a car with bodies in it, stuck on a bridge. They approach it cautiously, and are surprised at what they see.
A little while later, they come to an old helicopter and take refuge. They radio back to the base that they're in the helicopter waiting out the night. Note: I recall they specifically say "the helicopter" and not "a helicopter", as if they've been there before.
My question is this; if they were familiar with the route from one colony to the other, and the location of the helicopter, how is it possible that they had never seen that car on the bridge before? Or is that a plot hole that has no explanation?