The Clue Club go to the zoo to search for a missing elephant, but also some other animals. D.D.'s idea of disguising as a chimpanzee to stake out the thief doesn't work. At the docks, Chris Carloff and his accomplice Dr. Henkan are proved to be the thieves that smuggled the zoo animals.
Elenco: Bob Hastings , Paul Winchell , John Stephenson , Tara Talboy , Jim MacGeorge , Patricia Stich , David Jolliffe .