Season 4 now airing on STV
16th most downloaded documentary on Amazon 2016
An enduring Norse myth about a farm boy slaying a giant serpent, according to Carl Gustav Jung, reflects our own psychological battles with the fiercest monsters of them all - our egos.
Historian Ashley Cowie teams up with Iron Age specialist Iain Maclean seeking evidence of an ancient system of long distance communication between Caithness brochs.
Exploring the home and mind of Aleister Crowley, one of the most controversial and misunderstood psychonauts in modern history.
Historian Ashley Cowie explores a vast ancient lake in Colombia and discovers a lost lagoon inside a cave and hundreds of mysterious sacred petrograms.