The Real Atlantis Part 1: Zachary Quinto goes scuba diving, spelunking and mountain climbing through the Mediterranean in search of the site of the fabled city of Atlantis. (S1, ep 7)
Zach sets out to research the strangest creatures from the depths of the ocean and to see how much they lend to the monsters of myth and legend. (S1, ep 3)
Mind Control: Zachary Quinto explores the terrifying concept of mind control, including meeting an alleged victim implanted with an electronic harassment device in his head. (S1, ep 9)
Life After Death: Zachary Quinto tackles the ultimate existential question as he explores what happens when we die and whether or not there is life after death. (S1, ep 10)
Aliens: Actor Zachary Quinto hosts this reboot of the 1970s documentary series that explores the unexplained, beginning with a search for extraterrestrial life. (S1, ep 2)
Artificial Intelligence: Host Zachary Quinto speaks to experts in the world of artificial intelligence and investigates Facebook's AI project which was shut down in 2017. (S1, ep 6)
The Alien Code: Giorgio A Tsoukalos investigates famous mysteries from every corner of the globe. Could they share links that connect them to the extraterrestrial? (S1, ep 10)
The Mystery Of Nazca: Giorgio Tsoukalos heads to Peru to investigate whether the strange symbols covering its desert floor are key to proving aliens once visited Earth. (S1, ep 9)
The Founding of America: Giorgio Tsoukalos investigates whether alien encounters influenced the establishing acts of the Founding Fathers as he travels to Washington DC. (S1, ep 8)
The Mystery Of Puma Punku: Experts explore the puzzling construction of Puma Punku in Bolivia. Could advanced technology have been used to carve the ancient temple complex? (S1, ep 7)