STORY LINE:
At start, one/two astronaughts go into space, to investigate an unknow life signs.
But they find the planet's atmosfear Ripped up their/his craft and he is stranded on this unuasual planet which, can sustain life, even though it is barren.
He "somehow" has camping equipment, and randomly some idiot shoots him, but he doesn't get hurt or die, and there is a spacecraft about to land somewhere too.
You need To think this through more twix.