To stop an alien threat, The Doctor goes undercover at Coal Hill School, disrupting Clara's life in the process ("The Caretaker"). Then, the moon is an egg ("Kill the Moon"). Also: Mike has a crush, which leads Dan to teach him of the Half, Plus Seven Rule. There are spoilers stemming from the season nine trailer, but they're brief; skip 2:45-3:20 if you don't want to hear them. And then there's Ian. Please visit www.patreon.com/biggerontheinside.