A small Norwegian town experiencing warm winters and violent downpours seems to be headed for another Ragnarök -- unless someone intervenes in time.

Blamed by some, hailed as heroes by others, those involved with Fukushima Daiichi face a deadly, invisible threat — an unprecedented nuclear disaster.

From the hilarious to the mind-boggling, from the deadly to the bank-busting, witness some of the most outrageous structural disasters and the genius resolutions to get things back on track.

Natural and man-made catastrophes retold by eyewitnesses and dramatic reconstructions.

Estonia tells the story of the tragic accident of the car-ferry MS Estonia, which deeply shocked the world in the autumn of 1994. Through the moving personal stories of victims, survivors, loved ones and investigators, the eight-part series explores how it is possible that 852 people lost their lives and no one is held accountable.