When a devastating winter storm freezes over the whole of North Carolina, climatologists and disaster relief experts are called in before the entire East Coast is destroyed.

As a megaquake threatens San Francisco, a series of foreshocks wreaks havoc across the city. Now, an elite team of emergency service and disaster experts converge on the anticipated epicenter, working tirelessly to save as many lives as possible and stop the Big One before it strikes.

When a super-volcano threatens the island of Hawaii, a team of rescue and disaster experts who are called in to help must race against the clock to save those in the path of the molten lava and stop the volcano for good.