When Big Things Go Wrong: Season 1, Episode 1

1 - 1: Overloaded

In the heart of Minneapolis, the busy I-35 bridge collapses at the peak of rush hour traffic. As the city reels, the question on everyone's mind: how did an enormous steel bridge fail without warning? The mystery is unlocked through clues from other disasters--from a bridge in Florida, to a collapsing crane in Wisconsin--these moments reveal a remarkable tale of fatal miscalculations, and sheer bad luck.