Join host Tim Shaw in the Nevada desert to set off some explosives and find out what material can - or can't - contain the blasts. Next, it's teatime, and Tim shows us what happens when an unlit match meets superheated steam. At an engineering workshop, he demonstrates how spinning a kerosene flame can transform it. And finally, Tim invites workers at a scrap yard to guess how to set a huge cable reel rolling and begin the demolition of a car ready for the crusher.