Seeking evidence of the afterlife, Josh Gates enters an ancient Roman "Gate to Hell" that still claims victims. A medical doctor demonstrates how consciousness survives death, and a gifted medium shocks Josh with a message from beyond the grave.

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 Russian cryonics lab 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 a trip to the brink of the afterlife. Then a team of investigators guide him into one of the most haunted places on Earth.