Lieutenant Scott is going on his first assigned, to man Checkpoint Lambda, where the fabled and mysterious Galcondo ship is due home from it's mysterious trip to once again bring fabulous treasure to the known galaxy.... only this time a gang of thugs is trying to steal it! Scott needs all his abilities and training in the Galactic Patrol to say this distant and lonely outpost from disaster.
OK, so this EASILY could have been a western if you swap the ship with a stage coach, the station with a boom town, and the comets with a tornado. In fact, I suspect it IS a western (which the author wrote quite a few of) slightly re-purposed. It's also a short story lengthened out, and it shows... at least a 1/4 of the book is spent stating, re-stating, and re-restating, how hard it'll be to save the day (which happens, of course). Also, the author has a weird impression that comets are made up of lots of tiny bits of stuff, and that they collect more bits as they go... almost like they are roving moons or something. I guess you could sorta interpret the coma like that, but it seems really odd.
I'd give the author another shot, but this was not a stellar read.