The Brigadier stared in amazement as the Robot began to grow ... and grow ...
swelling into the size of a giant! 

Slowly the metal colossus, casting its enormous shadow upon the surrounding
trees and buildings, began to stride towards the Brigadier. A giant metal hand
reached down to grasp him ... Can DOCTOR WHO defeat the evil forces controlling the Robot before they execute their plans to blackmail - or destroy - the world? 

Still weakened by his third regeneration, along with Sarah, the Brigadier and Harry Sullivan, faces the threats made by a group of dissident scientists, including the icy Miss Winters, to enslave the world - or perhaps to destroy the planet entirely.

Written by Terrance Dicks and broadcast in 1974, this story was first pulished under the title The Giant Robot. It was the first television story ever to feature the Fourth Doctor, as played by To Baker - regarded by many as the definitive Doctor. Robot also introduces Harry Sullivan to the TARDIS crew.