The story revolves around the planet Shada, on which the Time Lords have constructed a high security prison for some of the Universe's most dangerous criminals. Skagra, a flawed genius from the planet Dronoid, wishes to create a "Universal Mind" in which all the pooled knowledge of the universe's greatest criminals would be placed at his disposal and with which he intends to take control of the Universe.

Starring:

Tom Baker, Lalla Ward, Christopher Neame, Daniel Hill, Denis Carey, Victoria Burgoyne, David Brierly, Gerald Campion, Shirley Dixon, Derek Pollitt, James Coombes, John Hallet, David Strong, James Muir, Derek Suthern

Genre:

Sci-Fi