Big Fat Plot-Hole (SPOILERS)
Trygve says he was found (and clearly, he was), but there is no information about how that took place. It's a disturbing big, gaping hole in the plot, and a distraction.
I'll bet if there's a hole that big, there are others as well, that I didn't notice.
I still liked the film, but because of that, it was probably my least favorite of the three.