It is crunch time! With just six pounds separating them, veteran antiques trippers Catherine Southon and James Braxton battle it out on the final leg of their adventure. They travel through Cambridgeshire and Suffolk to Bourne in Lincolnshire in their smart and stately 1969 Rover P5. Along the way, Catherine meets a stallion in Newmarket, the home of thoroughbred horse racing, and even takes a ride herself. And James dips for wildlife on the Fens while discovering the influential banker whose passion for the environment led to conservation as we know it today. Back on the antiques trail, our terrific twosome seek out the best buys as they go head to head at the Lincolnshire auction. But will a jug in the shape of an owl or a biscuit tin in the form of a travelling trunk make the biggest profit?