Going into yesterday’s episode, I will admit I was concerned. How was Chris Chibnall and Malorie Blackman going to pull this off? The show had done touchy topics and addressed the past before, but not events that happened a mere decade before the show started in 1963 concerning events that still have an impact today. There was every chance that this episode could have gone wrong, but fortunately Rosa ended up being a game changer. Three episodes into the Chibnall era and we have been given one of the finest historical stories of the entire show, one that effortlessly captures the essence of the show and brilliantly handles its difficult subject matter with skill and care.