“Doctor Who” is back and so are we, for part one of this season’s six-episode-long epic story. As is so often true for multi-part Doctor Who adventures, it’s actually hard to judge how it went from a single episode! But we try our best to identify all the dangling threads in episode one, from men in hats to a surprisingly un-chilly Arctic Circle to a tiny house that puts one in the mind of The Master even if he’s not anywhere to be found! Also, we discuss if this sort of storytelling is what “Doctor Who” in a modern context should look like. Jason Snell with James Thomson.