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.

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?