The Wedding of River Song

Something is wrong, in the fullest sense of the word. At first glance, the world seems fine, but upon closer inspection, dinosaurs, Romans, and other things throughout time have appeared. Oddly, nobody seems to be bothered by it, like it was part of everyday life.

Another oddity has occurred. Despite the sun rising and setting like normal, the time is always the same. Only the Doctor has the answer, and boy oh boy, it's gonna be a whopper!