Anglesey farmer Huw Lewis bought a small painting depicting the Last Supper for £50 on the internet. Can the team prove it's an eighteenth-century work by the artist Benjamin West?

The team investigate a powerful scene of the aftermath of battle. Could it be a work by the Victorian artist Edwin Landseer that was previously thought to have been destroyed by a flood in 1928?

In 1999 Jon Swihart believed he'd bought a genuine work by the 19th century Orientalist artist Jean-Leon Greome but the leading authority disagreed. Can the team prove Jon right?

A sculpture found in the long grass of a Norfolk home bears striking similarities to the work of Henry Moore. Could it be a lost work by one of the greatest 20th-century artists?