This is a documentary about Immanuel Velikovsky’s discoveries by Henry Zemel. First telecast on February 22, 1972 by the Canadian Broadcasting Company. Immanuel Velikovsky proposed in his 1950’s book “Worlds in Collision” that many myths and traditions of ancient peoples and cultures are based on actual events: worldwide global catastrophes of a celestial origin, which had a profound effect on the lives, beliefs and writings of early mankind.