In this second series of his hit BBC4 show, James reassembles a whole host of objects which have been carefully taken apart to all their hundreds of individual component parts. Each episode focuses on one object and carefully puts it back together, screwing every screw, tightening every bolt and vigilantly rebuilding the object to its complete form, then testing its competency having gone through the process.   As well as learning the history of the objects, we get a history of the component parts. As James rebuilds an engine, he explains the cylinders, what they are, how they came about and what they do.
