A Long Time After Tomorrow

Sol knew how to survive among the stars.
Then his spaceship gets shot down and he finds himself in the woods of a foreign planet with nothing but a pounding headache, his rather unimpressed navigator and the cold threatening to kill him.
He soon finds out that figuring out how to survive on the foreign ground was more important.
He would've been fine but finds himself hunted by whoever had shot him down.
Only once a small group of people seems to change their mind about him can he try to get himself to safety again but what is he going to do once he recognizes who shot him down and that the real threat isn't the wilderness of the woods he crashed in?
That his group of presumed allies is more than he thought they were?
That his only chance might be to accept the support of the people who got him into the situation in the first place?