QUEST

Drew visits a huge antiques warehouse in Belfast. On the lookout for 18th century Irish furniture, he's excited to spot a mahogany chest of drawers.

Shane and Kate try to escape the heat by working at night. Plus, a rich source of gold may have disappeared when the Gold Devils need it most.

Jacqui and Andrew must push through a hostile country to find gold. The Gold Devils rely on Paul's huge heap leach to save their season.

After the birth of Daniel's child, the Rookies return to Coober Pedy. Kelly and Al battle a deadly cactus in their hunt for the most valuable opal.

Brother. Brothers Peter and Mick Cooke face off in a scrapheap challenge to build a opal hunting machine. And, the rookies resort to night time hunting.

Ceramics expert Kirsten tries to save a damaged porcelain guard dog. Plus, art conservator Lucia must use all her experience to repair a much-loved landscape.

In Yorkshire, Henry and Fuzz uncover a 1951 Lea Francis Saloon: hand-built, elegant, and born in a time when motoring was a luxury.

Henry and Sam are invited to look around the workshops of the National Motorcycle Museum. The guys consider bidding on a 1926 Ariel and a 1927 BSA.

Sam and Henry travel to Leicestershire to meet former motorbike racer Eddie Roberts. His impressive collection includes a rare 1962 Greeves Sportsman.

Toying With A New Life Down-Under. Angus unearths a treasure trove of toys in Manchester. Plus, three generations of heirlooms go under the gavel, but is their owner ready to sell.

Can Toy Cars Get Us To The Arctic? A retired couple asks Angus to sell their toy collection. Will they make enough funds to fulfil their dream of seeing the Northern Lights.

Catherine and David visit the Isle of Wight. David goes Dutch but not before learning about French soldiers' passion for garlic.

David and Catherine go digging for bargains on the Jurassic Coast. Catherine is attracted to old iron while David is daft for Delft.

Henry and Fuzz find a Mini Clubman racing car in Surrey. Can they get this track legend back to winning ways, or will it stay at the back of the pack.

Richard wants to take the business to a new level by using social media and his role as Cog brand ambassador, resulting in a trip to the Middle East.

Guz wraps his Honda in gold, meets anime car artist Rhian, and learns vintage car building - all before mastering doughnuts on the drift track.

How is Parma ham, the most famous ham in the world, made? Plus, how do they make rowing machines, and how are the iconic London Underground signs made.

How do planes take off and land on a beach at one of the world's oldest airports? And, how do they hand-make the national dress of Bavaria, lederhosen.