Instead of returning to the United States loaded with rare specimens of African animals for a Brooklyn circus, the great hunter, Buck Rand; the renowned animal trainer, Manchester Montford, and their reluctant pilot, Jimmie Shields, kidnap Boy in the middle of a blazing fire. Now, to save the helpless boy from the clutches of a rapacious entrepreneur, Tarzan and Jane must leave the escarpment to comb New York's inhospitable urban jungle; however, this time, it seems that the King is just out of his depth. Can Tarzan track down Boy in this hazardous concrete maze?
—Nick Riganas