Antique experts David Harper and David Barby lead two married couples into another battle of the bargains at the Royal Norfolk Showground near Norwich. The blue team set their heart on a metal toy tractor to take to auction, and the reds gamble on a 'white metal' plaque which may or may not turn out to be silver. Presenter Tim Wonnacott visits the Usher Gallery in Lincoln, where he looks at the contents of a beautiful rosewood cabinet.