A very straightforward series of fetch quests.
It begins by entering the Wayward and learning about a treasure hunter.
Next you’re tasked to build a sign at your Camp.
After learning about the gang of Raiders searching for Crane, you inform Duchess who sends you to two locations where you get different options to deal with the Raiders.
Once dealt with, Duchess sends you to rescue her people from the nearby Gault Mine.
After a short visit to a robot shop and a conversation with Duchess, you get a key to the treasure Crane found.
Pick your weapon of choice, report to Duchess and the Achievement is all yours.
I dealt with the Raiders nonviolently and convinced them to leave Duchess alone, so the quest line ended there for me.
Overall, less than an hour of work, just another side quest.