Leonard Nimoy hosts investigations into various mysteries.
3 - 1UFO Captives Sep. 14, 1978- 3 - 2Tornadoes Sep. 21, 1978
- 3 - 3Cloning Sep. 28, 1978
- 3 - 4Water Seekers (aka Dowsing) Oct. 05, 1978
- 3 - 5Jack the Ripper Oct. 12, 1978
- 3 - 6Cryogenics Oct. 19, 1978
- 3 - 7Siberian Fireball Oct. 26, 1978
- 3 - 8The Great Lakes Triangle Nov. 02, 1978
- 3 - 9Monster Hunters (aka Sasquatch) Nov. 09, 1978
- 3 - 10Bermuda Triangle Pirates Dec. 07, 1978
- 3 - 11Indian Astronomers (aka Mayan Legacy) Dec. 14, 1978
- 3 - 12Sherlock Holmes Dec. 21, 1978
- 3 - 13Lost Vikings Dec. 28, 1978
- 3 - 14Dreams and Nightmares Jan. 04, 1979
- 3 - 15Animal ESP Jan. 11, 1979
- 3 - 16The Money Pit Mystery (aka Captain Kidd) Jan. 18, 1979
- 3 - 17Psychic Sea Hunt Jan. 25, 1979
- 3 - 18The Angel of Death (aka Joseph Mengele) Feb. 01, 1979
- 3 - 19Noah's Flood Feb. 08, 1979
- 3 - 20The Diamond Curse Feb. 15, 1979
- 3 - 21Ghostly Stakeout Feb. 22, 1979
- 3 - 22Brain Power Mar. 17, 1979
- 3 - 23Sodom & Gomorrah May. 10, 1979
- 3 - 24King Tut May. 17, 1979