The BBC have released the synopsis for the penultimate story of Series 8 which is part one for the series finale. This episode will air November 1st on BBC One, BBC America and Space.
In the mysterious world of the Nethersphere, plans have been drawn up.
Missy is about to come face to face with the Doctor, and an impossible choice is looming.
“Death is not an end” promises the sinister organisation known only as 3W – but, as the Doctor and Clara discover, you might wish it was.
Written by Steven Moffat
Directed by Rachel Talalay
Guest stars Michele Gomez and Chris Addison