When two belligerent Dominators and their robotic servant Quarks land on the peaceful planet Dulkis planning to drop a radioactive seed into the planet's core to refuel their spaceship, the Second Doctor, Jamie and Zoe must attempt to inspire the pacifist Dulcians to resist.
Patrick Troughton , Frazer Hines , Wendy Padbury , Ronald Allen , Arthur Cox , Walter Fitzgerald , Brian Cant , Malcolm Terris , Philip Voss
BBC
