Doctor Who: Heart of Steel
Clara Oswald wanted to go somewhere nice. She wanted to go somewhere safe. So The Doctor offers to take her to the planet Avalon, the most peaceful planet in the universe- or at least it was. The Doctor and Clara are surprised to find that Avalon and its most powerful city, Magura, are being controlled by a company known only as "The Network". Tensions are running high in the city as The Resistance prepares to attack Magura's seven power plants after citizens start to go missing but what concerns The Doctor and Clara the most is that The Network is owned by someone with a very familiar face and name: Clara Oswald.