A heat dome, a powerful weather phenomenon, creates perfect conditions for wildfires as firefighters struggle to cope. In north-east Portugal Sophie drives through intense flames to save her family from a devastating wildfire. Rui, a Portuguese firefighter breaks protocol to cross the border to save a Spanish village in danger of being engulfed.

On April 27, 2011, a record 62 tornadoes rip through Alabama during the United States' largest ever tornado super outbreak. But one, in Tuscaloosa, proves especially deadly. This tornado is on the ground for 90 minutes, leaving a trail of destruction 80 miles long, as weather reporter Richard desperately tries to get residents to take cover.

On October 29th 2024, Valencia is devastated by Spain's deadliest flood. Record heat fuels a rare storm that dumps over a year's worth of rain in a single day, submerging communities and catching residents off guard. Over a million people were affected and at least 230 died. Survivors tell the stories of how their lives changed forever.