The Doctor is living in 1207 in a monastery contemplating how he might get in touch with Clara when the telephone on the TARDIS rings. It's Clara, living in the present day, seeking assistance with her Internet connection. She has no memory of the Doctor and is again working as a nanny. The Doctor pays her a visit and soon concludes that a living sentient computer is stealing people's souls using wifi and the Internet. The unknown power controlling the wifi tries to convince the Doctor that he cannot win. When Clara is taken, the Doctor has every intention of getting her back.
—garykmcd