Season 1
Episodes
1. Footprints Under The Window / Hunting for Hidden Gold
1969-09-06
No overview available.
2. Mystery of the Desert Giant / The Viking Symbol Mystery
1969-09-13
No overview available.
3. The Secret of the Old Mill / The Missing Chums
1969-09-20
No overview available.
4. The Secret Warning / The Mystery of the Aztec Warrior
1969-09-27
When their nocturnal search of the Applegate property is suddenly interrupted, the Hardys learn more about the mysterious treasure---and discover that they're not the only ones looking for it. Applegate: Florenz Ames. Iola: Carole Ann Campbell.
5. The Mystery of Cabin Island / The Hidden Harbor Mystery
1969-10-04
No overview available.
6. The Secret of the Caves / A Figure In Hiding
1969-10-11
No overview available.
7. The Ghost at Skeleton Rock / The Mystery of the Chinese Junk
1969-10-18
No overview available.
8. The Shore Road Mystery / The Sign of the Crooked Arrow
1969-10-25
No overview available.
9. What Happened at Midnight / The Clue in the Embers
1969-11-01
No overview available.
10. The Clue of the Screeching Owl / The Yellow Feather Mystery
1969-11-08
No overview available.
11. The House on the Cliff / Mystery of the Spiral Bridge
1969-11-15
No overview available.
12. The Mystery at Devil's Paw / The Haunted Fort
1969-11-22
No overview available.
13. The Sinister Signpost / The Melted Coins
1969-11-29
No overview available.
14. The Mark on the Door / The Flickering Torch Mystery
1969-12-06
No overview available.
15. The Secret of Wildcat Swamp / The Clue of the Broken Blade
1969-12-13
No overview available.
16. The Hooded Hawk Mystery / The Short Wave Mystery
1969-12-20
No overview available.
17. The Phantom Freighter / The Secret of Pirates Hill
1969-12-27
No overview available.