The Clue Club investigate a museum robbery in which the jewels are swiped one by one and Uncle Salty is suspected to be the thief. There seems to be a connection with the lighthouse Uncle Salty once worked in. Larry recreates the crime scene to expose the thief as Mr. Gooch and his trained mouse Barrymore.
Elenco: Bob Hastings , Paul Winchell , John Stephenson , Tara Talboy , Jim MacGeorge , Patricia Stich , David Jolliffe .