65 Million Years ago, an asteroid impact caused a cascade of catastrophes that led to the downfall of the dinosaurs, but what would happen if the same size space rock struck near the same spot again? How would modern humans cope with a hailstorm of falling rocks and debris, mega tsunamis, out-of-control fires, blast-furnace temperatures, and a destroyed ozone layer? In the wake of worldwide destruction, who would survive...and who would perish?

There are twice as many rogue planets as stars in the galaxy. So what might happen if a ringed planet the size of Neptune were on a collision course with Earth? Within a period of just four hours, as people flee in panic, the gravity from the rogue planet would tear apart the Moon.

When Earth gets hit by a deadly Solar Storm a massive chunk of the Sun our planet's electrical system turns into a smoking ruin. How does modern civilization cope without power?

World War 3 breaks out and a nuclear nightmare becomes reality as thousands of hydrogen bombs destroy the world's greatest cities. A deadly fallout of ash and debris creates a Nuclear Winter, plunging the planet into a sudden Ice Age. Crops fail worldwide and mass starvation drives humanity to the brink of extinction.

The most powerful blast of cosmic radiation in the Universe is just seconds from slamming into Planet Earth. When a gamma ray burst from two colliding stars hits the atmosphere, the deadly radiation delivers agonizing death and immediately wipes out half the planet.