MEGASTORM

Unusually warm water in the Gulf of Mexico is the driving force behind a monster hurricane wreaking havoc in Florida. Storm chasers Max and Aaron document the incredible storm surge, but as Hurricane Helene moves further inland, it collides with the mountain peaks of North Carolina—triggering an extreme weather event that will alter the communities of the Blue Ridge Mountains forever.

On April 27, 2011, a total of 62 tornadoes tore through Alabama in the largest tornado outbreak in the country’s history. One of them, in Tuscaloosa, proved to be particularly deadly. It raged for 90 minutes, leaving an 80-mile-long path of destruction in its wake, while meteorologist Richard desperately tried to get residents to seek shelter.

Hurricane Harvey explodes into a violent Category 4 storm—the first to hit the U.S. mainland since Katrina. As two weather fronts hem in Harvey, billions of liters of rain pour down over Houston. The flooding is catastrophic, putting thousands in mortal danger—among them, Katrina survivor Iashia.

Bushfires are a part of life in southern Australia, but heading into the summer of 2019, the country is drier and hotter than ever before. During the "Black Summer," 24 million hectares of land go up in flames. Firefighters David and Matt confront a new, unprecedented type of blaze, 19-year-old India fights to save her home, and the military carries out an extraordinary evacuation.

On a single day in December 2023, three supercell storms form over Tennessee, triggering a tornado outbreak—a rare occurrence for winter. Meteorologist Danielle and storm chaser Caleb issue disaster warnings as the storms ravage Clarksville and the surrounding area.

The most powerful tornado in the U.S. in a decade sweeps through Rolling Fork, Mississippi. When emergency services are unable to reach the scene, a group of storm chasers put down their cameras to help the injured. Among them is 21-year-old Freddie. A year later, he is one of the first on the scene when a violent tornado strikes in Texas.

On October 29, 2024, Valencia was struck by Spain’s deadliest flood. Record-breaking heat fueled a rare storm that brought more than a year’s worth of rain in a single day. Communities were submerged, catching residents completely off guard. Over a million people were affected, and at least 230 lost their lives. Survivors share how their lives were changed forever.

Amidst a heatwave in Europe, firefighters are struggling to cope with the fires left in its wake. Sophie drives through flames to rescue her family from a devastating forest fire in northeastern Portugal. Portuguese firefighter Rui breaks the rules, crossing the border into a Spanish village that is at risk of being consumed by the flames.