The Bells of Saint John~ A chance phone call reunites the Doctor with Clara in the present day. A mysterious organization, lead by the evil Miss Kizlet, sends robots known as "Spoonheads" to steal the minds of people who use the company's WiFi. The Doctor and Clara must work together to find the location of the organization and destroy it before the whole world is trapped by the WiFi.
The Rings of Akhaten~ Still not quite able to explain just who she is, the Doctor and Clara set off on their first adventure. He takes her to see the Rings of Akhaten and its famous pyramid. The residents of the 7 planets rotating the same son all believe the pyramid is the source of all life in the universe. There are quite a few visitors there for the Festival of Offering and Clara and helps a young girl, Mary, to have the confidence to perform an important ceremony to sooth and keep the Old God asleep. When Mary is drawn into the pyramid the Doctor and Clara go after her. When the Old God awakens, it's no match for the Doctor...or for Clara for that matter.
Cold War~ The Doctor and Clara find themselves dealing with Cold War tensions when the TARDIS lands aboard a disabled Soviet ballistic submarine. The Doctor isn't the only alien being on board however - while engaged in undersea drilling, Professor Grisenko thought he'd found a mammoth and brought the creature on the boat encased in ice. It isn't a mammoth but an Ice Warrior, who has been lying dominant for 5000 years. He identifies himself as Skaldak but when he cannot contact the others of his kind, he assumes he is the last of his kind. He now has every intentions of starting a thermonuclear war between the superpowers and destroy Earth.
Hide~ The Doctor and Clara arrive at an old manor house in 1974 where Alec Palmer and Emma Grayling are investigating the existence of a ghost. Alec is a former army Major and now a psychologist while Emma is an empathic psychic who can not only sense the presence of paranormal beings but can sense their feelings as well. Palmer explains that the house has been haunted for hundreds of years and the ghost, a woman, is likely much older. Emma senses that the ghost is very lonely but the Doctor realizes that she is not a ghost at all but a creature trapped in a zone where time moves much faster that for humans. The good Doctor gets to play Cupid.