The coastal metropolis of Miami, Florida, may be destined to become a real-life Atlantis. It faces a triple threat of crumbling limestone bedrock, ferocious superstorms, and relentless rising oceans.

The West Coast is home to the infamous San Andreas fault, stretching almost a thousand miles beneath the feet of millions of Americans. But just north, the Cascadia Subduction Zone is a larger fault that could trigger a megaquake, wreaking havoc from California to Canada.

New York is under attack as Hurricanes Ida and Ian unleash fury on innocent people with the death toll rising. Featuring how the latest science and technology can protect New York's eight million residents before the city is swept away by ferocious superstorms.