Season 1 · Host: Leonard Nimoy
- 1Other Voices17 Apr 1977
- 2Strange Visitors (aka Oracle Chamber)24 Apr 1977
- 3Ancient Aviators (aka Ancient Flight)24 Apr 1977
- 4The Bermuda Triangle27 Apr 1977
- 5Bigfoot28 Apr 1977
- 6Killer Bees1 May 1977
- 7Earthquakes7 May 1977
- 8The Mummy's Curse14 May 1977
- 9Martians21 May 1977
- 10Atlantis22 May 1977
- 11Psychic Detectives26 May 1977
- 12A Call from Space28 May 1977
- 13Learning ESP28 May 1977
- 14Nazi Plunder29 May 1977
- 15Amelia Earhart1 Jun 1977
- 16Dracula8 Jun 1977
- 17The Easter Island Massacre15 Jun 1977
- 18Ghosts22 Jun 1977
- 19Life After Death (aka Near Death Experiences)29 Jun 1977
- 20The Loch Ness Monster6 Jul 1977
- 21UFOs13 Jul 1977
- 22Voodoo26 Jul 1977
- 23Inca Treasures11 Aug 1977
- 24The Magic of Stonehenge10 Sep 1977