A dog, able to become temporarily invisible, and his human companions investigate mysteries involving the paranormal.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Assignment: Ahaab Apparition | 1973-09-08 | 30 min |
| Season 1 | Episode 2 | Brush Up Your Shakespeare | 1973-09-15 | 30 min |
| Season 1 | Episode 3 | The Galloping Ghost | 1973-09-22 | 30 min |
| Season 1 | Episode 4 | The Singing Ghost | 1973-09-29 | 30 min |
| Season 1 | Episode 5 | The Ghost Ship | 1973-10-06 | 30 min |
| Season 1 | Episode 6 | Mummy Knows Best | 1973-10-13 | 30 min |
| Season 1 | Episode 7 | The Haunted Wax Museum | 1973-10-20 | 30 min |
| Season 1 | Episode 8 | Aloha Ghost | 1973-10-27 | 30 min |
| Season 1 | Episode 9 | The Wicked Witch Dog | 1973-11-03 | 30 min |
| Season 1 | Episode 10 | Venice Anyone? | 1973-11-10 | 30 min |
| Season 1 | Episode 11 | Go West Young Ghost, Go West | 1973-11-17 | 30 min |
| Season 1 | Episode 12 | A Hard Day's Knight | 1973-11-24 | 30 min |
| Season 1 | Episode 13 | Is Sherlock Holme? | 1973-12-01 | 30 min |
| Season 1 | Episode 14 | That Snow Ghost | 1973-12-08 | 30 min |
| Season 1 | Episode 15 | Inca Dinka Doo | 1973-12-15 | 30 min |
| Season 1 | Episode 16 | Old MacDonald Had a Ghost--EE II EEYOW | 1973-12-22 | 30 min |
| Production | Joseph Barbera | Producer |
| Production | William Hanna | Producer |
