The Doctor turns the Aggedor spirit against the Ice Warriors to aid the Peladonians in their battle but Eckersley attacks him with the security system.
Quest roles:
Sonny Caldinez(Sskel), Max Faulkner(Tribesman (uncredited)), Stuart Fell(Entertainer), Alan Bennion(Azaxyr), Nick Hobbs(Wirrn Operator), Rex Robinson(Dr. Carter), Donald Gee(Eckersley), Ysanne Churchman(Spider (voice)), Nina Thomas(Thalira)