War, famine, plague... According to the Book of Revelation in the Bible, these are three of the four horsemen of a coming apocalypse. The fourth? The anti-Christ, in human form, walking somewhere among us. Could this 2,000-year-old prophecy actually come true? And could it be about to happen today?

In this fascinating special, History decodes the ancient prophecy, which actually consists of seven signs within seven signs within seven more signs, and examines whether any of them could be linked to actual or potential occurrences today. What kinds of occurrences? Asteroids, earthquakes, volcanic eruptions, red tides, global warming and plagues.