Time Team HD

The 20th series begins with an examination of what life was like for the First World War Machine Gun Corps, revealing the lost secrets of Belton House, the stately home where they were trained.

The National Trust Roman fort of Branodunum has produced some impressive aerial photographs of cropmarks, promising substantial buildings and multiple finds from the second to the fourth centuries AD.

Time Team investigate Caerau Hillfort, a huge hill near Cardiff that may be immensely significant; is it the long-lost Iron Age capital of South Wales? Geophysics shows multiple circular marks, indicating several roundhouses. However Francis is having trouble locating these structures in the ground.

Tony and the Team help Hektor Rous, the son of 'Aussie Earl' Keith Rous, piece together the mysterious history of the family's Tudor country home in Suffolk. They are joined by Tudor historian Suzie Lipscomb and buildings expert Richard K. Morriss.

Tony and the team work with volunteers from Operation Nightingale, an initiative to help injured veterans of the war in Afghanistan. They are investigating the ancient Barrow Clump on Salisbury Plain, where they discover burials from 2000BC and rare Saxon finds. The team are joined by Richard Osgood, an archaeologist from the Ministry of Defence.

Tony and the team make their way to the Lake District on an expedition that takes them both higher and deeper than they've ever been before. They are looking for a forgotten piece of the nation's industrial heritage - the Lake District used to be a major source of valuable copper.

Time Team investigate Oakham Castle in the tiny county of Rutland. It's Britain's best preserved 12th-century building but its grounds are full of mysterious lumps and bumps crying out to be investigated.

Roman remains have been turning up in an Oxfordshire field for decades, where a student in the 1960s believed he had uncovered a Roman mosaic. Is this the site of a lost grand Roman villa?

The team are working with Colm Donnelly, Finbar McCormick and others from Queen's University, Dublin. Their brief is to investigate an impressive ruin in County Down, Northern Ireland. It is associated with John de Courcy and his renegade Norman knights. But when was it built, and what did it look like?

Tony and the team try to piece together the complete picture of the Manor of the More, a once impressive palace masterminded by Henry VIII's right-hand man, Cardinal Wolsey. In its heyday it was supposedly even more opulent than Wolsey's other masterpiece, Hampton Court.

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.