Former showrunner Steven Moffat joins the new-new-series party with an episode set almost entirely in a bomb crater. The Doctor can’t move, and can’t emote too much, but he can still attempt to control the world around him. We talk about Moffat’s return, the importance of getting Ruby up to speed as a companion, and much more! Jason Snell, Erika Ensign and Chip Sudderth.