Broadcaster and archaeologist Mike Pitts delves into the question of why different archaeologists can dig the same sites yet reach completely different conclusions.

Mike visits Britain's biggest Iron Age hill fort, Maiden Castle, and, through archive, diary excerpts and interviews, relives two seminal digs that took place there in the 1930s and 1980s. Is it a monument tied up in Roman warfare and invasion, or a structure symbolising power and exclusion from the outside world? Featuring interviews with Niall Sharples, Beatrice de Cardi, Ian Armit and Chris Sparey-Green. Show less