Fiona and Philip stop the auction of a painting that used to be a German national treasure but was stolen from it's Jewish owners by the Nazis during the Second World War. They then follow the story as it is discovered whether it is the work of Rembrandt.

Fiona and Philip take a look at the career of forger Han van Meegeren, who managed to fool galleries and buyers in the early 20th century with his fake pieces by Old Masters.

Fiona and Philip take a look at a painting which could be a piece of work by 19th-century American artist Winslow Homer and was discovered at a rubbish tip.

Fiona and Philip take a look at a painting they think is an unrecognised work by Monet. They then try to persuade different luminaries from the art world to believe them.