
Explore the cutting edge of human achievement. Journey to the deepest reaches of space. Dive into the mysterious physics of quantum realms. Fly with astronauts into hostile extraterrestrial realms.

Floods are a growing threat to our planet, posing engineering and technological challenges.

This episode focuses on the notion of urban resilience, visiting trailblazer cities around the world.

The Bahamas get pounded by 200mph winds during category five Hurricane Dorian - the most intense cyclone the country has ever seen; in Arizona, flash flooding sweeps a couple away resulting in a heart-stopping rescue.

Wildfires rip through Victoria, Australia. In Texas, a skydiving training session ends in disaster when there's a major midair collision at 30,000 feet.

In Arkansas, two storm chasers help warn people that a tornado is barrelling towards them, wreaking havoc on downtown Jonesboro and leaving a trail of destruction. In Idaho, a daredevil adventurer decides to swim beneath a frozen lake.

In Australia, the worst bushfires in recent history attack multiple towns - overwhelming firefighters and trapping tourists; The Philippines is usually resilient to natural disasters, but a 6.4 magnitude earthquake catches everyone off-guard.

Witnessing Hurricane Ida's devastation as it reduces Louisiana to rubble; following a man running for his life from California wildfires; facing a deadly sea swirl with a Norwegian ship crew; looking for a snow kiter engulfed by an avalanche.

Rescuers aid a young girl trapped under rubble after a Turkish earthquake, all while a tsunami threatens to add to the turmoil; a father and daughter escape Oregon wildfires; a flash flood upstages an outdoor wedding.