Doctor Who: The Dominators

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.

Starring: Patrick Troughton, Frazer Hines, Wendy Padbury, Ronald Allen, Kenneth Ives