Premise: On Androzani Minor, the insane Sharaz Jek plots to regain the power he was cheated out of, enlisting the help of a corrupt industrialist on Androzani Major.
Notes: Veteran series script writer and former script editor Robert Homes returned for this serial, not having written for the series since he did The Power of Kroll in 1978. Part four's effects heavy regeneration featured companions from throughout Davison's era and required new recordings to be made rather than stock footage. The actors involved were Matthew Waterhouse (Adric), Sarah Sutton (Nyssa), Janet Fielding (Tegan), Mark Strickson (Turlough), Gerald Flood (Kamelion) and Anthony Ainley (The Master), the majority of which were already contracted for the season anyway whereas Matthew Waterhouse and Sarah Sutton, who had left in previous seasons, received special contracts to return on.
Verdict: A serious and doomladen war story in which practically everything comes together perfectly. Slow at the start but once it gets going it caries you through to the very end with lashings of atmosphere and a real sense of hopelessness 9/10