The World's Deadliest Weather

In New South Wales, Australia, the worst bushfires in recent history attack multiple towns, overwhelming firefighters and trapping tourists at a lake front caravan park. A 6.4 magnitude earthquake in the Philippines catches everyone off-guard. In England, it's a fight for survival as a group of cavers attempt to rescue their colleague from the flooded section of an active cave. And in Kansas, two tornado chasers intercept a terrifying twister.