Dinosaurs are all over London as Professor Whitaker initiates ‘Operation Golden Age’.
Sarah discovers that the spaceship passengers are all victims of a deception.
The Doctor is framed for causing the appearance of the dinosaurs.
The Doctor captures a Tyrannosaurus Rex as Sarah falls into enemy hands.
The Doctor plans to capture a dinosaur and discover who is bringing them through time.
The Doctor and Sarah return to London but find the city deserted.