Inside The Foreign Office

BBC2, 9pm, Thursday

For the first time in more than 20 years, the BBC has been granted access to one of the most fascinating government departments.

Filming for this three-parter took place during a crucial 12 months.

Tonight, as world leaders meet for a United Nations session in New York, Foreign Secretary Boris Johnson is briefed on what to say to his Russian counterpart Sergei Lavrov.