A nuclear submarine spying on Soviet maneuvers goes missing, and its wreckage is mysteriously found on the ocean floor; the US Navy claims it was an accident, but declassified documents reveal startling new information that points to a Cold War coverup.

The Shroud of Turin is alleged to be the actual burial cloth of Jesus Christ – but it could be a total hoax; now, scientists use cutting-edge forensic analysis to finally determine the truth behind this astonishing holy relic.