The Hunt for Bull Murphy is an adventure tale about Swampy and his four friends as they go about tracking down a person wanted for many serious robberies. The story begins with the reasons why they commenced the perilous search for the gangster Bull Murphy. Along the way, Swampy and his mates are faced with many obstacles in their attempt to claim the reward for the capture of the crook. An astonishing event puts Swampy in even more danger when, in the climax, Swampy and his friends manage to get in the way of Bull's escape.