As the Doctor was dangling from the doorway in the middle of his regeneration, the TARDIS hit a building a bit too hard and the raggedy-dressed man just sort of… fell out. While wondering the streets of London in search of his sexy blue box, the Doctor encounters an interesting pair out on a really-this-isn’t-a-date before continuing his evidently unavoidable crash-landing. And every time the three met hereafter, all at the most inconvenient of places during the worst possible moment.