When we look around our homes, sheds and garages we see an array of household objects that with one click of a button or twist of a knob will spring to life, and - most of the time - do exactly what we want them to. But how on earth do these objects work? To find out, James May (fuelled by endless cups of tea) heads into his workshop with thousands of little pieces to assemble some of our most beloved and recognisable objects from scratch to see what it actually takes to get them to work.