Exotron

"On a distant colonial outpost of Earth, a group of terraformers is under threat from the planet's most fearsome predator: the giant carnivorous Farakosh. All that stands between the colonists and a grisly death are the Exotrons - huge robots equipped with devastating firepower. But are the Exotrons controlled, and where did the colonists find the resources to build them? The Doctor wants answers andthe colonists are reluctant to provide them. Meanwhile, outside the compound, the Farakosh are massing..." "Includes a bonus one-part story, URBAN MYTHS, written by Paul Sutton In an expensive restaurant somewhere on Earth, three gourmets plan their evening. First item on the menu: the death of the Doctor."