Fisk has lost his fence and asks you to line up a new one. It is a simple errand: head from the Old Camp over to the New Camp, find 
Sharky down in the cave settlement, get him to agree, and bring the word back to Fisk. There is no real fight, just the walk between camps.
This one is mostly travel and talk, but the road between camps is worth packing for.
- Food.
- Healing potions.
- A weapon for anything on the road.
- A
Scavenger if you have one, to speed up the trip.
Find Fisk in the Old Camp and talk to him. Tell him to relax and that you will sort the problem out, which sets you off to find a new fence.
Leave the Old Camp through the wooden gate and make your way to the New Camp, on foot or by whatever faster travel you have.
At the New Camp, carry on to the second set of gates and speak to 
Jarvis there, then head inside.
Work your way in until you reach the large open cave that holds the main settlement, and take the lower path down. Follow it around to the left, past 
Wedge, then a little further and slightly right, and you find Sharky.
Talk to Sharky and tell him you need a new fence. Run the dialogue out, he agrees to help, and that gives you the answer Fisk wanted.
Leave the New Camp and travel all the way back to the Old Camp. Find Fisk again, tell him you found someone who can help, and the quest is done.