Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
Edgar Cayce: The Sleeping Prophet: In the 1900s, a modern-day prophet Edgar Cayce became a worldwide sensation. He claimed to receive visions of both the past and future.
The Gods Of Greece: The ancient Greeks credited their most monumental achievements to gods. But is it possible that these powerful beings from Mt. Olympus were extraterrestrials?
Power Of The Talisman: Could it be that what fuels our faith in talismans is not superstition, but a real connection to something beyond our world?
The Top Ten Extraordinary Creatures: Ancient Astronaut Theorist Giorgio Tsoukalos takes a look back at The Top Ten Extraordinary Creatures we've investigated.
Secrets Of Japan: Japan has long been a place of wonder. Delve into the age-old mysteries, examining how they connect with the recent surge in UFO activity.