Flog It! comes from historic St Albans Cathedral and Abbey in Hertfordshire. Antique experts Claire Rawle and Jonathan Pratt find a selection of antiques and collectibles to take to auction. Claire discovers an arts and crafts bowl which may have belonged to George Bernard Shaw's wife and Jonathan gets excited when he finds a drawing by the artist Dame Laura Knight. Paul Martin takes a trip underground as he explores the intriguing Royston cave which boasts medieval carvings.