Anglesey farmer Huw Lewis bought a small painting depicting the Last Supper for 50 pounds on the internet. Can the team prove it's an 18th century work by the artist Benjamin West?

Fiona Bruce and Philip Mould investigate a small oil painting of a man praying in a mosque, a scene filled with meticulously painted and intriguing detail. Its owner, Jon Swihart, bought it at auction in 1999 and believed it to be the work of the nineteenth-century French artist Jean-Leon Gerome, who was a leading figure in the Orientalist genre of painting.

The team investigate a powerful scene of the aftermath of battle; could it be a work by celebrated Victorian artist Edwin Landseer, thought to be destroyed by a flood in 1928?

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?