The team are in Somerset to investigate the remains of a small Roman villa, dating back to just after the time of the Roman invasion in 43 AD. But previous excavations suggest it was occupied by local inhabitants rather than Roman invaders. Could it have been built on the site of an earlier, Iron Age settlement? The team are joined by Roman specialists John Creighton and Tom Moore; and Claire Ryley makes an authentic period garden. Members of the Stranglers put in a surprise appearance.