Seeking evidence of the afterlife, Josh Gates enters an ancient Roman "Gate to Hell" that still claims victims. In New York, a medical doctor shows how consciousness survives death. In California, a gifted medium shocks Josh with a message from beyond.

To crack the code of reincarnation, Josh seeks out expert Dr. Deepak Chopra, who advises him to investigate the phenomenon first-hand in India. In Turkey, Josh explores an Islamic path to paradise, and returns to face a man possessed by an evil spirit.

From ancient tombs to the latest bio-technology, humans have always been obsessed with cheating death. Josh visits a tribe in Indonesia where people live with mummies, and a cryonics lab in Russia at the cutting edge of freezing humans for the future.

They say you only live once, but can we return from the abyss? In the Amazon, Josh meets a shaman who takes him on an ayahuasca trip to the brink of the Afterlife. And a team of investigators guide Josh into one of the most haunted places on earth.

Exclusive footage and behind-the-scenes secrets direct from Expedition Unknown HQ, featuring special guest spiritual medium who speaks with the dead, unseen footage from Josh's Gate to Hell dive, and a medical doctor who claims evidence of an afterlife.

Josh shares exclusive footage from an actual exorcism, along with special guest and real-life exorcist, Brother Carlos Oliviera. Josh undergoes a past-life regression through hypnosis, and reveals incredible details of a former life at sea.