I once read a short online comic, I think off the artists blog? It opens as a western. A town is trying to kill an outlaw (I think) but nothings working, not drowning, not fire, not guns.
The outlaw escapes, naturally, taking somebody with him. Then we see him in a crashed ship, sand everywhere, obviously been here a long time.
He talks with the AI of the ship, a "mother" model. He tells her he brought her one, and she thanked him, saying something to the effect of "All the children must be brought home." It's implied that the humans on this planet came on a starship that crashed, and so much time and so many generations have passed they forgot their spacefaring roots.