In episode one, Fiona and Philip head to the Essex countryside on the trail of one of the 20th century's greatest artists, Dame Elisabeth Frink.

Owner Amanda Kirke discovered an intriguing sculpture at her local car-boot sale and her initial search on the internet, brought up a similar looking figure produced by Elisabeth Frink in an edition of 10 in 1956.

Using scientific analysis and the latest laser scanning technology, together with the expert opinion of a friend and fellow sculptor of Frink's, will Philip and Fiona's evidence be enough to convince the authentication committee that Amanda's figure is genuine? There is a lot at stake; if this is a genuine Frink it could be worth up to £60,000. But if it's not, then it's scrap metal value is a mere £10! The stakes have never been so high for the team.

In episode three, Fiona Bruce and Philip Mould head to France on the trail of two of the greatest Impressionist and Post-Impressionist artists, Camille Pissarro, and his friend and protégé, Paul Cézanne.

Fiona travels to the stunning Provençal landscape on the trail of a simple watercolour, owned by Dominique Rogers. Dominique is the great- great niece of Anthony Valabrègue, a poet, art critic and friend of Cézanne who painted him several times. Dominique believes the painting was a direct gift from Cézanne, passed on by Valabrègue's widow to her father in the 1920s.

Meanwhile Philip travels to Pontoise in northern France, where Pissarro set up home, to meet Zana Glaser, who inherited a drawing depicting a group of cabbage sellers from her father, Tom. It was accepted that the outline of the drawing and signature were by Pissarro, but when Tom tried to sell the drawing at auction in 2012 it was rejected by the Pissarro committee who felt it had been coloured by another hand. Zana turns to the Fake or Fortune team for help. Can science prove that the outline and colouring were done at the same time?

If the Pissarro is genuine, it may be worth as much as £50,000. If not, its value is probably no more than £1,000. And if the Cézanne is authenticated, it could be worth a massive £100,000 as the artist's work has never been more popular. If not, it's worth virtually nothing. Can the team gather enough evidence to persuade the relevant authorities?