This story is a sequel to Fallout Equestria: Viva Las Pegasus
While Farsight and his group are playing the big leagues, they seem to forget about the humble New Pegasian. Enter Brawny Boulder, veteran wastelander and OG turned guard under the newly formed New Pegasus City Council. Being such a... gifted individual, Boulder and his young ward Desert Sundown are assigned to high profile tasks such as guarding important people, and many more. However, it seems that Boulder and Sundown have a past that haunts them, and it might just come back to bite them in the flanks.
[Changed the name, because to be frank, the pun sounded so much better in my head. But on the advice of a trusted adviser, it makes the story look kind of unprofessional. Yeah, but still, same old story.]
This story happens in the same universe as "Fallout Equestria: Viva Las Pegasus" and has a lot of references to it. I suggest you read that before this one.