September 2, 1980 • 30m
This episode introduces the themes that are explored in the remainder of the series. Clarke expounds on his categorisation of myst...Read more
September 9, 1980 • 30m
This episode looks at the Giant squid, giant octopus and the megamouth shark.
September 16, 1980 • 30m
This episode is concerned with technology from history that was either ahead of its time and subsequently forgotten, or artefacts ...Read more
September 23, 1980 • 30m
This episode is divided equally between considering evidence for the Bigfoot and Yeti. Interviewees for the segment on the Yeti in...Read more
September 30, 1980 • 30m
Mystifying geoglyphs, giant pictures covering large areas on the ground, appear across the globe, many created by ancient peoples....Read more
October 7, 1980 • 30m
This episode covers Scotland's Loch Ness Monster and the Ogopogo. At least 50 other lakes in the world are claimed to be likewis...Read more
October 14, 1980 • 30m
This episode deals with the Tunguska explosion of June 30, 1908. To this day there is uncertainty as to the true nature of the inc...Read more
October 21, 1980 • 30m
Clarke invites us to hear the legends and theory concerning Stonehenge and the hundreds of other megalithic structures to be found...Read more
October 28, 1980 • 30m
This episode explores the phenomena of strange objects that fall from the sky. Clarke displays a variety of cases including ice a...Read more
November 4, 1980 • 30m
Clarke states that he has been interested in UFOs for 50 years, and claims to have observed at least six. This episode covers th...Read more
November 11, 1980 • 30m
This episode covers alleged sightings of giant reptiles and other cryptids including Mokele-mbembe, the giant anaconda, Ameranthro...Read more
November 18, 1980 • 30m
In this episode, Clarke explores celestial mysteries including lost planets such as Vulcan, the Martian canals, and the identity o...Read more
November 25, 1980 • 30m
This episode includes a summing up of the series, and a collection of unrelated subjects including the sailing stones of Death Val...Read more