The Doctor plans to let one of the Dalek factions have the Hand of Omega (but not too easily, of course) while keeping Gilmore and his military men preoccupied in a safe territory, but that plan could be threatened by a mole in their midst and a miscalculation on the Doctor's part.
Quest roles:
Terry Molloy(Emperor Dalek), John Scott Martin(Dalek Operator), Roy Skelton(Daleks (voice)), Pamela Salem(Rachel), Harry Fowler(Harry), Dursley McLinden(Mike), Simon Williams(Gilmore), George Sewell(Ratcliffe), Royce Mills(Daleks (voice)), Cy Town(Haemovore (uncredited))