Catherine and David are on their last legs in Devon. Catherine is still having bother with the classic car and its French gearstick but finds steering an enormous 100-year-old traction engine to be right up her street.Bridges are crossed as David walks from Devon to Cornwall over the river Tamar, spanned by Brunel in 1859, and their jaunt along the Jurassic Coast affords lots of scope for our Road Trip veterans to unearth things with an interesting past. They're both on the tiles at Kingsbridge, but while Catherine opts for the more traditional, David scoops up an eel spear and a fetish doll, hoping for luck with the more outlandish.Their final auction is at Broughton Astley in Leicestershire. Has Catherine kept good company with William de Morgan, or was David born with a large George IV silver spoon in his mouth?