Turns out Doctor Who’s last Doctor is the secret to understanding this one
After a spectacular re-introduction that almost-but-not-quite wiped the slate clean, Doctor Who spun around to do the exact opposite: Underline how much the previous era mattered. What’s more, it did so in a wonderfully taut standalone thriller, a propulsive riff on The Thing that will double nicely as a perfect episode to introduce new viewers into how great the show can be at knocking out twisty sci-fi mysteries.