Antiques experts Mark Stacey and Thomas Plant continue their road trip extravaganza through the Kent, Essex and Cambridgeshire countryside. Mark skips over to Rochester Castle to hear about the most famous siege in medieval history and Thomas pops into Chelmsford to find out why it was such a hotbed of innovation in the late 19th century. After picking up bag loads of antiques, who will make the most profit at auction in Cambridge? Show less