The Cyber King: Call the TARDIS is the thirty-first level of Chapter 4.
Twelfth Doctor: Call the TARDIS! Call the TARDIS! How many times do I have to say that?
Clara Oswald: How?!
Twelfth Doctor: Don't you lot carry mobile phones everywhere?
Clara Oswald: Well,yes. But I'm different, I use it for...
Twelfth Doctor: Yes, I'm sure you're nothing like the others. Selfies and likes and a frightening amount of over-sharing.
With one hand on Bessie's steering wheel he grabs Clara's mobile phone, tosses it in his lap, and uses his sonic screwdriver on it.
Clara Oswald: Do you want me to hold it? Speak to her?
Twelfth Doctor: What decade are you from? Bessie has hands free!
Bessie's old speakers crackle for a few seconds with static the start to ring, until...
River Song: The TARDIS residence, River Song speaking
Twelfth Doctor: Help us!
River Song: What do you want me to do? I'm above the city tracking you. Good driving, by the way.
Twelfth Doctor: Land the TARDIS!
River Song: Where?
Twelfth Doctor: On it!
River Song: It's going to take me a few minutes to disable the safeguards. Stay alive!