5x1 - UFO Coverups

September 20, 1980

5x2 - Faith Healing

September 27, 1980

5x3 - Lee Harvey Oswald

October 4, 1980

5x4 - Daredevil Death Wish

October 11, 1980

5x5 - Life After Life (aka Out of Body Experiences)

October 18, 1980

5x6 - Moon Madness

October 25, 1980

5x7 - Dangerous Volcanoes

November 1, 1980

5x8 - The Lindbergh Kidnapping

November 8, 1980

5x9 - Acupuncture

November 15, 1980

5x10 - Jimmy Hoffa

November 22, 1980

Jimmy Hoffa was the president of the powerful Teamsters' Union. He only cared about himself. He fought to the top, but eventually got killed, although his body was never found.

5x11 - Fountain of Youth

November 29, 1980

5x12 - Laugh Therapy

December 6, 1980

5x13 - Salem Witches

December 13, 1980

5x14 - Super Children

December 27, 1980

5x15 - The Great Wall of China

January 10, 1981

5x16 - The Castle of Secrets (aka Coral Castle)

January 24, 1981

5x17 - Great Lovers

January 31, 1981

5x18 - The Holy Grail

February 7, 1981

5x19 - The Death of Marilyn Monroe

February 14, 1981

5x20 - Chinese Explorers

February 21, 1981

5x21 - The Hindenburg Mystery

February 21, 1981

5x22 - The End of the World

April 30, 1981

5x23 - The Lusitania

May 16, 1981

5x24 - Sun Worshippers

May 19, 1981