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.

Inspector Tarconi leads a SWAT team to arrest a counterfeit drug dealer in Belarus, but has to ask for Frank's help when things go badly wrong.

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.