The Final Search The authorities look for the treasure in the tower. Details Casts Title The Final Search Genres Kids Mystery Release Date 1957-01-04 Episode Runtime 00 Hours 30 Minutes Season Number 1 Episode Number 16 Production Companies Walt Disney Productions Tim Considine Frank Hardy Tommy Kirk Joe Hardy Florenz Ames Silas Applegate Russ Conway Fenton Hardy Sarah Selby Aunt Gertrude Hardy Robert Foulk Jackley the Plumber Carole Ann Campbell Iola Morton Donald MacDonald Perry Robinson Arthur Shields Boles