Roo Irvine is behind the wheel of a 1970s classic car with a rookie road tripper riding shotgun. Mark Hill's purchases caused quite a shock at auction last time round, so the veteran antiques hunter needs to up her game.

This trip sees them clocking up the miles in the Highlands. Roo falls in love with a set of art deco-style silver butter knives and gambles big money on a little penny bank - a decision that Roo may rue come auction day. Mark risks a three-figure sum on an Edwardian writing table, hoping that its incredible condition will attract big bids. However, it's the surprising discovery of a rare piece of studio glass that gets the new boy very, very excited.

Mark takes a breather along the way to learn about the cultural and historical significance of the Scots language, even attempting to order his lunch using a newly acquired linguistic skill. Roo meets a Scottish strongman to find out all about a legendary feat of strength.

At auction, will Roo's love of shiny things be matched by the bidders? And Mark's rather remarkable find leaves everyone shocked when the gavel comes down.

It's the penultimate leg of our Scottish road trip, and Roo Irvine and Mark Hill are about as far north on the mainland as they can get! Their 1970s motor has taken them to John O'Groats, and Scottish lass Roo is distracted from antiques shopping as she discovers why the windswept landmark became such an iconic destination.

This Highlands shopping trip proves fruitful, and they leave with a veritable bounty of antique treasure. Some rather smart whisky glasses prove to be a fantastic find, while a 1950s Bakelite telly is a rare survivor of its day. But will the Banbury bidders be as excited as the experts?

Mark takes a break from shopping to learn all about a dark chapter in Scotland's history and the consequences for Highlanders.

At auction, it's a battle pitting Mark's cute teddy and stuffed lamb against Roo's ornate candelabra.