Prisoner of the Judoon: Part One

Plot:

When a space pod crashes near to her house Sarah Jane and her gang investigate. A Judoon officer Captain Tybo is pursuing a renegade Vail called Androvax, who is bent on destroying all the planets in the galaxy. He takes over and possesses Sarah Jane who, acting out of character because of the possession, orders Mr. Smith to auto-destruct. A countdown of one minute begins.