A 12-year-old witnesses the murder of his father, an italian judge

Frank and Cat travel to the Sahara Desert to deliver a briefcase, but they end up stranded over night.

Frank is asked to retrieve a vital document from a villa in Crimea occupied by Russia. The villa is heavily guarded and just getting across the border will be a challenge.

Frank Martin and Caterina Boldieu are posing as an extraordinarily wealthy couple, in order to retrieve a handful of diamonds which have been stolen from their current client, and replace them with infallible fakes.