The third trip for experts Kate Bliss and Paul Laidlaw sees them do battle in the antiques emporia of the south coast before an auction in Windsor. Paul plans to crush his opponent's lead with a tank but Kate fights back with a mechanical penguin. Kate visits Portsmouth to find out about a decisive naval confrontation while Paul heads to Southampton to discover how Britain's landscape has been mapped for generations. An exciting auction in Windsor makes this a close-run race - who will come out on top?
