Raging Rocket: What caused a rocket to burst into flames as it was lifting off on its way to the international space station? (S1, ep 8)
Trapped Under Seattle: Engineers struggle to repair a mega-tunnel beneath Seattle when their machine is buried. Also, what caused a luxury cruise ship to burst into flames? (S1, ep 7)
California Pipeline Catastrophe: What caused the explosion that devastated a Californian neighbourhood and killed many residents? (S1, ep 6)
Colorado Dam Disaster: A storm takes out nine dams in Colorado, leaving an entire area flooded and its population stranded. (S1, ep 5)
Kentucky Sinkhole: When a sinkhole swallows the National Corvette Museum in Kentucky, is there anything engineers can do to make it safe again? (S1, ep 4)
Freight Train Collision: What engineering failure could have caused a single train crossing to become the site of two deadly collisions within a single year? (S1, ep 3)
Heartland Explosion: A look at devastating events caused by engineering failures. What caused the colossal explosion in a small Texas town that tragically killed 15 people? (S1, ep 2)
Exploding Manhole Covers: A look at some of the world's most devastating disasters. This time, what caused manhole covers across the US to inexplicably explode? (S1, ep 1)