This is a repeatable quest where you have to take in a Squire and mentor him/her. The squire cannot be killed and will be ignored by the enemies. The locations will be selected randomly from any below:
Big John's Salvage
Fallon's department store
Mass Pike Tunnel
Parkview Lounge
Wilson Atomatoys Corporate HQ
After clearing the area, talk to the squire then return to Kells to complete the quest.