The Master reveals a simply extraordinary secret to the Doctor while the battle against the Cybermen continues.
While ostensibly another Cyberman adventure, there are some intriguing subplots.
Another episode where meet key figures from history; this time Mary Shelley on the eve of the inspiration for Frankenstein's monster.
The team take a well-earned break that is interrupted by nightmares.
After the striking and mysterious previous episode, we are back to normal transmission.
Some of my favourite aliens - the Judoon - are back and they're after a very mysterious fugitive.
The Doctor and the team are in the early 1900s and encounter two famous inventors and a new enemy.
The Doctor is in a mood - which she denies - and Graham's won a trip to what he thinks will be a good remedy - a spa.
The conclusion to last's episode was big, loud, convoluted and had many good moments, but was ultimately unsatisfying.
The Doctor's back after a year off and she's not the only returning Time Lord.
