What do dolphins and LSD have in common? Evidently, the answer is neurophysiologist and self-proclaimed "psychonaut" John C. Lilly. Back in the 1950s, this pioneering scientist began working with dolphins to explore the mysteries of human consciousness — a journey that eventually led him into the depths of psychedelic experimentation. A dive with dolphins that’s as fascinating as it is mind-bending. Narrated by Chloë Sevigny.