The third season will continue from 1964, covering Harold Wilson's two periods as prime minister until 1976, while the fourth will include Margaret Thatcher's premiership and introduce Lady Diana Spencer.
Kolmas hooaeg toimub perioodil 1964–1976, keskendudes muuhulgas Harold Wilsoni kahele ametiajale peaministrina, ning neljandas figureerivad kesksetel kohtadel Margaret Thatcher ja Diana, Walesi printsess.