The start of this road trip sees two intrepid antiques explorers set off in a 1970s camper van. Silver expert Margie Cooper and coin collector Tim Medhurst navigate the back roads of Cumbria before heading north to Dumfries and Galloway on the hunt for treasures that will excite the bidders at auction.Margie has packed a flask and sandwiches, and Tim has a hot water bottle, so they're both prepared for whatever the antiques shops of the Borders can throw at them. Tim plumps for a Scottish theme with his purchases, picking up a Scots Guards picture and a rare Scottish jug, while Margie sticks to what she knows, choosing a locket and a bracelet made from… silver.There's always time for a detour, and Margie heads to the world's oldest working camera obscura to find out about the man responsible for its construction and the reason why it was built, and how it's managed to survive to the present day. Tim heads further back in time for his sojourn from the shops, finding himself in a Roman fort perfectly preserved in peat. His guide explains why climate change is causing archaeologists a headache.With their purchases whisked off to Leicestershire, Margie and Tim are on tenterhooks to see who will take an earlier lead. Can Tim expect big profits because ‘Tiny Timmy' has charmed the bidders?