A mysterious figure known to disappear almost as quickly as he appears. He carries a .44 Magnum, wears a trench coat and wears an old fedora. Long assumed by many to be just an urban legend of the wasteland, albeit a well-traveled legend as people speak of him anywhere from the New California Republic all the way to Far Harbor and possibly beyond, there are some like Diamond City's resident detective, Nick Valentine, who believe the Mysterious Stranger is real, possibly a member of a group that has yet to reveal itself to the greater world, with unknown reasons or motives to help anyone...