Series B, Episode 7. First broadcast on Tuesday, 20 February 1979.

This week on Maximum Power, Nathan and Brendan teleport down to Federation installation Q-Base on the planet Fosforon to steal a translator crystal, and what better way of doing that than by blackmailing an old ‘friend’.

Meanwhile, an ancient spacecraft is heading towards the planet, complete with a deadly strain of space plague, and the other plot strand. Sensing something is wrong James alerts Simon who heads down to the planet to explain to the base’s chief scientist, a noted virologist, how viral transmission works.

Will they be able to find a cure in time, or will the base succumb to a Killer, in Episode 7 of Series B of Blake’s 7.