1. Mount St. Helens

From scientists to campers to residents, discover the stories of those who were there when Mount St. Helens erupted.

3. Oklahoma Tornado

Rarely seen footage and nerve-wracking stories place you in the middle of the Oklahoma tornado of 1999.

4. Oil Rig Explosion

Follow a handful of men as they race for survival through the smoke and fire-filled labyrinth of the Piper Alpha Oil Rig.

5. USS Indianapolis

Witness the worst sea disaster in U.S. naval history, the sinking of the USS Indianapolis, and the horrors that ensued.

6. Dam Disaster

See how a massive landslide into a dam reservoir caused a wave of disaster to hit the village of Longarone, Italy.