Paul Martin presents from Sandon Hall in Staffordshire. Hundreds of people turn up with collectibles and treasures they want to take to auction. Antiques experts Christina Trevanion and Charles Hanson uncover a few gems, including a silver ladle with a surprise in its bowl and a train set brought in by the son of William Moorcroft, the world-famous ceramicist. And Paul Martin finds out about the epic 18th-century voyage by the second Englishman to circumnavigate the globe.