The team goes behind the scenes at Mathewsons, a North Yorkshire-based, family-run car auction business which uncovers rare vehicles in Thornton-le-Dale. It attracts classic car buyers from all over the country.
Derek's in Bromsgrove on the trail of a rare mark 2 Aston Martin DB6. Plus, Jack and Charlie collect an even rarer Toyota Celica Supra in Cheshire.
Father and son duo Paul and Charlie are off on a road trip to Northampton, to extract a Daimler Sovereign, and a Sunbeam Alpine and that's been languishing in a garage since 1973.
Derek's winging his way to Bingley to meet a kindred spirit who's parting with his TR7 after 32 years. Paul and Charlie head to Anglesey to collect a pair of Lotus's.
Derek collects a pair of stylish British classics from a Yorkshire workshop, with the Morris 1000 finding a new home with a 10-year-old superfan.
Derek's charmed by a 1929 Rolls Royce Phantom with an unusual history, involving a WW1 hero and a tale of fraud.
Paul, Mick and Charlie are in Hull for one of their biggest ever collections. Dave takes a test drive in Tesla Model X and Derek is bowled over by a classic vintage motorbike from the 1930s.
The Mathewson family business starts a new era as Charlie heads off on his first solo collection, to pick up an Austin van from the North York Moors.
Jack has his eye on a Peugeot 205 GTI that could be one of the finest examples in the country. Plus, Derek collects a pair of sporty 60s Triumphs.
Derek picks up some very special working vehicles. Charlie feels the pull of a gargantuan Hummer and Paul extracts a vintage tractor from a Yorkshire barn.
Charlie picks up an iconic 60s motor - a Ford Cortina Deluxe - and a 1970s Morris van brings a taste of Carry On Camping to Pickering.
Jack's baby Max makes his podium debut with Great Grandad Derek. Paul visits a former stock car racer and finds a Pinto pimped Anglia and a Talbot Sunbeam Lotus.
Derek acquires a collection of pre and post war classics, including a Vincent Rapide, a 1928 Alvis, a Ford Pilot and an Indian Scout with sidecar.
Derek has to extract a vintage car from its bizarre resting place, while Charlie picks up a Vauxhall Viva from a man who has owned it for over half a century.