"Within the Forbidden Zone is Control, the computer complex which runs the entire Federation. Blake is now ready to return to Earth to attack it."
Synopsis from The Canberra Times (Canberra), 21st March 1980.

Join us for a discussion of the 5th episode of Blakes 7 Series 2, first
broadcast on February 6th, 1979.
(First shown in Australia on Friday, April 4th 1980 (Good Friday) at 7:30 pm)