The Doctor and Sarah reach Earth and try to warn the research centre about the Kraal invasion before Styggron unleashes his virus.
The Master arrives on Earth at a circus run by a man named Rossini and steals a dormant Nestene energy unit from a museum. He reactivates it using a radio telescope and uses his hypnotic abilities to take control of a small plastics firm run by the Farrel family, where he organises the production of deadly Auton dolls, chairs and daffodils.
Humanoid Auton dummies distribute the...
The making of Doctor Who: Spearhead From Space Episode 1 (1970), an iconic serial which relaunched Doctor Who (1963) as a colour series and introduced Jon Pertwee as the Third Doctor.