Professor Alice Roberts and archaeologist Matt Williams present the year's most outstanding archaeology. During the summer, archaeologists have been unearthing our history in hundreds of digs across Britain. They've gone to extraordinary lengths to uncover long-lost treasures, retelling our story in a way only archaeology can. With unique access to some of the countries best digs, our teams have been self-shooting their excavations to make sure the audience is there for every moment of discovery. This episode heads to the west of Britain, while archaeologists join us back in the Salisbury Museum to look at the new finds and what they mean. Marden Henge: The communal sweat lodges and feasting remains that illuminate the lost rituals of Stonehenge. Durotriges: A glimpse into the bizarre animal sacrifice rituals offered to their gods by a mysterious Celtric tribe of the first century BC. Trellech: An enormous lost Welch city is discovered seven centuries after it disappeared from historical record. Kent's Cavern: A team swap trowels for pneumatic drills in a search for the hidden entrance of the site where Britain's earliest human remains have been found. Jersey: Archaeologists are fighting against mother nature to find the evidence of a Stone Age hunter-gather campsite. Staffordshire Hoard: Conservators painstakingly reassemble the elaborate weaponry of the Anglo-Saxon warriors we didn't know existed.