The latest episode joins "Rosa" as a heartbreaking, intimate look at one of the 20th century's grimmest chapters. But does it succeed in at last deepening Yaz? We dive deep into this mostly brilliant, beautiful episode, one that feels a long, long time coming for a British cultural institution like Doctor Who. As for the question of the show's least defined companion, well, we don't exactly have good news there, but at least we have a lot to say about just where Yaz stands six episodes in. Plus Allison reveals why she loves this episode's aliens so damn much, and Alasdair takes us all on a long-winded journey through the new series's historical episodes. Oh, and we also digress quite a bit to talk about dream guest stars. We both definitely have types.