Season 4

Leonard Nimoy hosts investigations into various mysteries.

1. 1. Tidal Waves

   1979-09-20 · 30m

   Tidal waves are responsible for an enormous loss of life and property, yet often not considered as threatening as other natural disasters. Past tidal wave effects as well as future efforts to counteract potential damage is presented.

2. 2. Carlos, the Most Wanted Man in the World

   1979-09-27 · 30m

   A profile of the notorious international terrorist, Ilich Ramírez Sánchez aka Carlos.

3. 3. The Amityville Horror

   1979-10-04 · 30m

   An examination of the house in Amityville, Long Island, New York that is supposedly haunted.

4. 4. UFO Australia

   1979-10-11 · 30m

   An overview of the prevalence of UFO sightings in the Southern Hemisphere with an in-depth look at an Australian pilot who described his abduction while in contact with air traffic controllers.

5. 5. Immortal Sharks

   1979-10-18 · 30m

   Sharks are a source of great curiosity and concern and among the sharks the most feared is the Great White. Expert testimony and reenactments demonstrate examples of the awesome power, adaptability, and immense danger of the Great White.

6. 6. The Lost Colony of Roanoke

   1979-10-25 · 30m

   A look at new evidence which offers an intriguing theory about where the colonists of the ill-fated Roanoke colony went.

7. 7. The Shroud of Turin

   1979-11-08 · 30m

   This segment examines the authenticity of the Shroud of Turin, which many believe is the actual burial cloth of Christ and that it bears His image.

8. 8. Mexican Pyramids

   1979-11-15 · 30m

   In Mexico and Guatemala stand great temples and pyramids built long ago by the Aztecs and Mayans, two extremely advanced civilizations. Despite their many breakthroughs much of these cultures and their practices remain shrouded in mystery.

9. 9. The Abominable Snowman

   1979-11-22 · 30m

   An examination of the Yeti, the legendary ape-like creature supposedly inhabiting the Himalayan mountains.

10. 10. Pompeii

    1978-11-29 · 30m

    Pompeii: The great Roman city was a wealthy resort and mecca for fun-lovers before the eruption of Mount Vesuvius in 79 AD. Were early Christians among the Roman revelers?

11. 11. D.B. Cooper

    1979-12-06 · 30m

    Follows the incredible hijacking commited by D.B. Cooper, who parachuted out of an airplane with the ransom money and was never seen again. It offers some evidence about Cooper's possible fate.

12. 12. The Ten Commandments (aka Mount Sinai)

    1979-12-13 · 30m

    A look at Mt. Sinai, where Moses was supposed to have received the Ten Commandments from God.

13. 13. The Dark Star (aka The Dogons)

    1979-12-20 · 30m

    The Dogon people of west Africa possess ancient, sophisticated knowledge of the Universe, in particular of the star Sirius B, which remained unknown to scientists until 1862. How did the Dogon gain their advanced awareness of the heavens?

14. 14. The San Andreas Fault

    1979-12-27 · 30m

    The San Andreas Fault traverses the majority of California. Based upon historical and scientific data, is it possible to predict future earthquakes along the fault line as well as mitigate potential damage and loss of lives?

15. 15. The Missing Heir

    1980-01-03 · 30m

    At the time, there were over $20 billion unclaimed in USA banks from those who died intestate. This show focuses on a stock certificate in a San Francisco vault of Wells Fargo Bank worth $3.2 million.

16. 16. Vincent Van Gogh

    1980-01-10 · 30m

    An examination of the legendary, but troubled, painter Vincent Van Gogh - was he really mentally ill?

17. 17. Wild Children

    1980-01-17 · 30m

    Several alleged historical cases are examined of children who became lost and were raised in the wild by animals.

18. 18. The Ghost Ship (aka Mary Celeste)

    1980-01-24 · 30m

    An examination of the notorious sailing ship that was discovered mysteriously abandoned at sea with the crew and passengers vanished without a trace.

19. 19. Earth Visitors

    1980-01-31 · 30m

    "In Search of ..." examines evidence that life on earth began when extraterrestrials brought it here.

20. 20. John the Baptist

    1980-02-07 · 30m

    "In Search of..." investigates to determine whether the legendary holy man's remains are in Europe or Egypt.

21. 21. Air Disaster Prediction

    1980-02-14 · 30m

    In this episode, In Search Of investigates the possibility of predictions of airplane disasters. Did an ordinary citizen predict the 1979 crash of American Airlines Flight 191 in Chicago? Did another citizen foresee the 1978 collision between a Pacific Southwest Airlines 727 and a small plane? Can such predictions be used to prevent other diasters?

22. 22. The Bimini Wall

    1980-02-21 · 30m

    A look at the various theories behind the origin of the Bimini Wall as well as other natural features of the district, focusing-upon the much-discussed connection to the lost city of Atlantis.

23. 23. Glenn Miller

    1980-03-07 · 30m

    An examination of the mysterious disappearance of the big band leader.

24. 24. Past Lives

    1980-03-14 · 30m

    Is it possible to determine if we've lived past lives? Several cases of suspected reincarnation are considered and the practice of regression therapy, the process of revisiting past lives to help solve current dilemmas, is demonstrated.