On the invitation of the owners, Steve and Pru Barlow, Time Team try to discover if Upton Castle in Pembrokeshire was one of the Anglo-Norman castles built to defend 'Little England beyond Wales' from the locals. Unfortunately the castle was subject to much cosmetic alteration down the years. So some of the efforts centre around the chapel, which appears to be the earliest building on site, and may actually pre-date the castle. It contains a 14th century stone effigy, apparently of Sir William Malefant. Also the churchyard may yield some clues. Neil Holbrook supervises. The team are joined by historians Suzannah Lipscomb and Richard K. Morriss.