WARNING: This synopsis contains spoilers some may want to avoid.
The BBC have released a synopsis for the final episode of Series 9, Hell Bent. You can read the synopsis below:
If you took everything from him, betrayed him, trapped him, and broke both his hearts…how far might the Doctor go?
Returning to Gallifrey, the Doctor faces the Time Lords in a struggle that will take him to the end of time itself. Who is the Hybrid? And what is the Doctor’s confession?