An attractive young man, Caleb, visits the Museum and meets its Director General, Della Howells. She succumbs completely to him, and they embark on a passionate affair.

As Della starts her new job as the Museum's General Manager, her relationship with her son's friend, Caleb, intensifies. But what are Caleb's intentions? Why is he pursuing a relationship with both mother and son?

Della's relationship with Caleb is intensifying and a morning visit to Caleb's house has developed into a habit. But how long will the lovers be able to keep their affair a secret?

A look at ongoing restorations, repairs and upgrades being made to the 250-year-old British Museum.

In the penultimate episode of the series, Della's life takes a major turn for the worse. Having quarrelled with Sadie, her best friend seeks out Elfryn, who confides to her that he's made a major discovery regarding the authenticity of one of the Museum's most valuable paintings.