Disc.Turbo

In New Orleans, a hotel under construction collapses. In Denmark, a wind turbine is destroyed. What engineering errors caused these disasters.

In Oklahoma, cars and trucks are sent plummeting into the Arkansas River after part of the I-40 bridge collapses. What caused this shocking catastrophe.

Partygoers are horrified when two overhead walkways collapse at a fancy hotel in Kansas City, Missouri. What engineering mistakes caused this fatal disaster.

Powerhouse Coach builds one of the greenest RVs on earth. Colorado has the toughest Unimog, and $2.4 million buys chic style from Featherlite Vantare.

Richard Rawlings and his team take on a struggling custom hot rod shop in the wealthy Huntington Beach. Can they turn it around in less than a week.

In California, catastrophe strikes one of America's most important intersections. Plus, there's a demolition disaster in Canberra, Australia.

In Arizona, a fire destroys a river crossing. In California, a concert hall causes a storm. In Ohio, a driver and her vehicle are swallowed whole.

In Sweden, tragedy strikes as a historic bridge is destroyed in seconds. A New Jersey casino is the victim of a massive disaster.

In California, a dam collapse causes chaos. In Massachusetts, the tallest library starts cracking. In Italy, a vital bridge comes crashing down.

In Oklahoma, cars and trucks are sent plummeting into the Arkansas River after part of the I-40 bridge collapses. What caused this shocking catastrophe.

The engineering on the convertible C10 works in theory, but making it work in practice is the next step. A team bring in a replica '67 Cobra with a bad engine.

'Mueller? 'Mueller? Of all the different versions of the VW Bug, there is one that stands out - the Hebmueller. There are thought to be only about 200 of them left.

The VW Bug build continues, and the challenge is to keep what makes the car a Hebmueller intact, while taking bold steps to turn it into a hot rod.

Henry and Guy are invited to Yeomans in Worcestershire, which is packed to the rafters with classic British motorbikes, but will the boys be able to get any of them running.

Henry and Fuzz visit an ex-commercial pilot with two hangars' worth of stuff. He's got classic cars and even planes, but will a BSA with missing parts prove a bridge too far.

Henry and Guy go to Wiltshire to see Phil Pearce, where they find sheds full of tractors, classic cars and police bikes. Will Phil drive a hard bargain.

Henry and Fuzz are back in Durham visiting a passionate collector of vintage cars and automobilia, where a Dot three-wheeled motorcycle catches their eye.

Richard faces the hard reality that the workshop isn't yet making any money. But a fast turnaround paint job on a Land Rover provides some financial respite.

Richard is under pressure when he competes at an NEC show to bring in clients. Plus, Anthony's unusual repair job has him sourcing spare parts from Sri Lanka.