The doctor finds Clara in present day, where they work together to solve the mystery of people disappearing which as it turns out, has a sinister link to WiFi.
The doctor takes Clara to the rings of Akhaten, A partly destroyed planet, where a religious ceremony is about to be carried out, but a darkness is stirring, a hungry darkness that could consume the rings of Akhaten and the universe.
The Doctor and Clara find themselves on a Russian submarine that is falling to the bottom of the ocean because of an attack by a rogue Martian warrior that's still on board.
The Doctor and Clara arrive at a supposedly haunted mansion where they find a ghost hunter and a psychic who are on the search for a legendary ghost known as 'the witch of the well'
After the TARDIS is caught accidentally by an outer space trash collector, Clara is trapped deep inside of it where she finds herself on a journey through the doctor's past and her future.
When they find a picture of the Doctor in a recently dead man's eye, it's up to Madame Vastra, Jenny and Strax to save The Doctor and find out what sinister secrets are going on at Sweetsville, Yorkshire.
The Doctor takes Clara and the children she babysits to a rundown amusement park in space where Cybermen are hiding, and ready to invade the most precious place in the universe, The Doctor's mind.
The Doctor's friends are being kidnapped, which leads him to the fields of Trenzalore, where his greatest secret will be revealed and Clara's mystery will be solved.
The Doctor's worst enemies, The Daleks, The Cybermen, The Angels and The Silence, return, as the doctor's eleventh life comes to a close, and his twelfth life begins.
In 2013, something terrible is awakening in London's National Gallery; in 1562, a murderous plot is afoot in Elizabethan England; and somewhere in space an ancient battle reaches its devastating conclusion.