Liverpool Sound and Vision Rating * * * *

Cast: Sylvester McCoy, Sophie Aldred, Philip Olivier, John Leeson, Mandi Symonds, Maggie Service, John Heffernan, Phyllida Nash, Siobhan Redmond, John Dorney, Paul Panting.

Revenge is a dish best served cold, preferably being poured from a bucket with ice cubes the size of Norwegian glacier formation and over the head of someone you don’t like whilst they are sunbathing. Failing that, to be mastered in the form that Science Fiction adores, with plenty of back story and with an enemy that doesn’t quite fit the top echelons of master criminals or war mongering civilisations.