"Mystery in the Mountains" is a sequel to "Joe Cynik: Don't get me started." Joe Cynic continues his adventures while trout fishing in Idaho on vacation. He befriends an elderly man along the river who is murdered by two drug-dealing criminals. He joins the State Police in the investigation and meets a beautiful Patrolwoman who becomes his romantic interest. During the investigation, Joe suffers life-threatening injuries, is lost in the wilderness and is attacked by a bear. He is hospitalized and banished from the investigation due to his "loner attitude" and missteps. Depressed, he heads for home and a surprising conclusion.