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The sons of the great detective Fenton Hardy, Frank and Joe are eager to impress their father with their mystery solving skills.
First Air Date: 1956-09-21
Last Air Date: 1957-12-20
Status: Ended
Number of Seasons: 2
Number of Episodes: 35
Tim Considine
Frank Hardy
Tommy Kirk
Joe Hardy
Russ Conway
Fenton Hardy
Sarah Selby
Aunt Gertrude Hardy
Carole Ann Campbell
Iola Morton
Andy Clyde
Lacey
1956-09-21 • Episodes: 20
When an opportunity comes to help prove the new kid in town as innocent and find the long lost Applegate treasure, they jump on it. We follow the boys' case as they discover new twists and turns in the new case and in the mystery of the 10 year missing treasure.
1957-09-13
Episodes: 15