The BBC have released a synopsis for Nightmare in Silver (slight spoiler alert)
Hedgewick’s World of Wonders was once the greatest theme
park in the galaxy, but it’s now the dilapidated home to a shabby showman, a
chess-playing dwarf and a dysfunctional army platoon.
When the Doctor, Clara, Artie and Angie arrive, the last thing they expect is the re-emergence of one of the Doctor’s oldest foes. The Cybermen are back!