The Christmas special episode titled 'Doctor Who: The Return of Doctor Mysterio' aired on BBC One, featuring the Doctor in a superhero-themed story.
BBC officially announced the upcoming Christmas special episode titled 'Doctor Who: The Return of Doctor Mysterio' starring Peter Capaldi as the Twelfth Doctor.
Filming for the Doctor Who Christmas special 'The Return of Doctor Mysterio' took place, continuing the show's production for the 2016 holiday special.
The Doctor arrives in New York and meets Grant and Lucy, beginning their adventure together.
Grant is transformed by the alien energy and gains superpowers, becoming the superhero known as The Ghost.
Captain Rittenhouse and his agents seek the alien energy source for their own purposes, posing a threat to the city.
The Doctor and Grant as The Ghost work together to stop Captain Rittenhouse from exploiting the alien technology.
After the conflict is resolved, the Doctor says goodbye and leaves Earth, with Grant continuing his role as The Ghost.