Episode 1

In April 2011, 360 tornadoes ravage the southern United States in four days, killing 348 people.

Episode 2

A mine collapses in Chile, trapping 33 miners almost half a mile underground.

Episode 3

Montecito is hit by a devastating natural disaster that leaves its residents fighting for their lives. Overnight, the quiet Californian beach town is swamped by a terrifying series of thirty-feet high, boulder-filled debris flows that destroy homes and leave streets swimming in mud. Through eyewitness testimony and footage taken during the disaster, we reveal how split-seconds decisions made the difference between life and death.

Episode 4

The story of the largest fire in Portugal's history told by the people who were there.

Episode 5

Nepal is hit by a 6.7 mega-earthquake that kills thousands; across the country, survivors are hit by terrifying avalanches that destroy everything in their path; presenting stories of survival, from the Kathmandu Valley to Mount Everest.

Episode 6

On Oct. 1, 2015, the cargo ship El Faro is on a regular run to Puerto Rico when it disappears in a Category 4 storm called Hurricane Joaquin; it is determined that the El Faro sank off the coast of the Bahamas with 33 crew members.