The best moment might be a single sentence: "It's these that you are worried about, right sir?" Briggs spends the episode connecting dots, and some of the dots are clearly connecting back. The flashbacks are back, like an uncle who tells the same story at every dinner. It also finally answers a question from E31, "Well done, Major Kimblee. So, how did the Philosopher's S...", so patience pays, eventually. It happens, and then it is over.