When a dinosaur materialises alongside the Houses of Parliament in Victorian London, the Doctor';s old friends the Paternoster Gang are relieved when he arrives, seemingly to deal with the creature. However, time is against him as he must embrace his latest form in order to conquer a sinister threat lurking in the background of events.
Altogether, the episode was definitely sloppy in some respects, but the emotional fallout between the Doctor and Clara was worth it, and now it leaves us in a now man's land for a bit.