Clara is struggling to balance life with the Doctor and her domestic life. The Doctor has become caretaker at Clara's School, where alien creature Skovox Blitzer is on the loose.
Capaldi once again is utterly captivating, he's too good for this episode, compare this to Listen, it all comes down to the writing, and with this one it's just not up to scratch. The Skovox Blitzer is possibly the worst monster ever created, it's just terrible, too CBBC.
The main problem here is the plot, or rather the absence of one.
Danny Pink is something of a mixed bag, he has some great exchanges with the Doctor.
Best bit has to be the surreal ending featuring the Skovox's early victim, with Missy and the awesome Chris Addison. I love the way that arc is going.
I have to talk about Moffat, over the last few years he has allowed too many duff episodes to go into production, they have an outstanding talent in Peter Capaldi, but he deserves better then this, this is just not good enough for him. He's a wonderful writer, but as a showrunner there are a few too many episodes that are not good enough.
Disappointing on so many levels. 5/10.