Between the 1970's and the 1990's, we saw a movement, believing that Extraterrestrials and the Mont Saint-Hilaire (in the province of Quebec, Canada), had a link between them, even suggesting that there would be an extraterrestrial base in the mountain. According to this movement, Lac Hertel would be bottomless and creatures out of our world prowl on this mountain, at night. A madness has seized this movement. For almost 30 years, the belief persisted, until the end of the 1990s. Since then, several people have asserted on the tip of the lips, to have seen paranormal activities in the vicinity of Mont Saint-Hilaire; Several people still claim to see UFOs over the Mountain. Between mystery and science, you'll discover what gave birth to this fascination when the people of the region face this majestic mountain. From one speaker to another, discover the birth of the myth and its mysteries.