Previously on Doctor Who: The Witch’s Familiar.
In this two-parter opened by Toby Whithouse, we see a bit of a reset — this is, in essence, the first proper adventure after everything that’s happened. After Clara said goodbye for the first time, after Danny’s first death and then his second. Being abducted to Skaro doesn’t really count because, well, it wasn’t the Doctor that called, it was UNIT. So this is the first we see of Clara and the Doctor on the road again, wherever they went at the end of Last Christmas notwithstanding.