This is the one where we haven’t met River Song yet. Also there’s carnivorous shadows and existential horror. And River takes forever to say everybody lives.
This is the one where the Doctor helps the Doctor, the Doctor, the Doctor, and the Doctor break onto the set of Doctor Who! Oh and steal their own costumes from a Doctor Who museum.
This is the one where the Doctor and Clara and the Doctor and Queen Elizabeth and the Doctor and Billie Piper having an identity crisis all team up to NOT actually destroy all the Time Lords, but actually destroy all the Daleks, except for the thousands and millions that we already know actually survived. But don’t worry, we won’t remember any of this later, it’s all very timey-wimey.