Digging for Britain: Series 4 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.

West
Alice Roberts and Matt Williams visit archaeological digs across the country, beginning with a look at the work being carried out in the west of Britain. The presenters visit Salisbury Museum, finding out about developments at sites including the enormous lost Welsh city of Trellech and Kent's Cavern, a prehistoric cave where Britain's earliest human remains have been found.

East
Professor Alice Roberts explores the year's most exciting archaeological finds in the east of Britain. A team unearths a mass grave, divers search the Thames for clues to a 17th-century tragedy, and a metal detectorist makes the find of a lifetime.

North
Professor Alice Roberts explores the year's most exciting archaeological finds in the north of Britain. A team discovers clues to Scotland's first kingdoms, metal detectorists unearth a hoard of Viking treasure, and a new housing development reveals a graveyard of Iron Age warriors