Once again, The Master/Missy just shows up alive, without any (plausible) explanation... yet (but I doubt they will, or even explain how she was captured... which rarely happens).

Only episode 6... and he's blind. I really hope they don't keep that going for the rest of the season, unless we are already at the end of the season, as they appear to have now revealed the major elements and characters of this season's story arc.