Okay, so the microdot is heavily encrypted, but so far it's showing some photographs and some blueprints of CIA assets: The Belgian's selling CIA intel and not really a diamond at all. And also there are 20 diamonds total. Casey and Walker are still on microdot duty, while Carmichael and Rye are tasked with capturing the Belgian and his stones. And because nobody knows what's on there -- and SPOILER ALERT it's so contrived that nobody could possibly foretell it, anyway -- they're all treating this as Code Red.
Especially Walker, who once again demands to join them in Switzerland. Still unsure if the Intersect is a Boy/Girl thing or just a regular Boy thing, Chuck surprises everybody, including himself, by asking that Sarah stay at Castle. She's like, "No but okay, but this is actually dangerous." Chuck's hurt reply -- "I'm sorry, and I can only handle fake danger?" -- is as bitchy as it is valid, so she does her Sarah Walker thing and switches viewpoints instantly: "Well, yes. The Intersect is a big deal. But also Agent Rye's been pulling this shit for days now and it's not working, and this diamond is clearly majorly killworthy. This is Advanced Dangerous, not Regular Dangerous." Chuck won't budge. Things get weird.
"I can take care of these [...] people without you holding my hand!" he shouts. "[Risking your life is] what I do! I'm a spy!" And Sarah's so overtaken with worry (60% girlfriend, 30% handler, only about 10% actual emasculation) that she accidentally drops the curtain for a second and yells, "NO, CHUCK, YOU'RE NOT!" Everybody's nuts shrivel, even the General's, at this awful truth, and Sarah backtracks and eats shit with amazing dexterity: "Not... Right now?"
Which is the nicest possible way to say it besides the actual truth, which is that you don't ask a dance major to do your taxes or your lawyer to build you some furniture, unless they've gone through CPA training or carpentry apprenticeship. Levi's acting here is truly remarkable, I mean he must have been planning for this scene since the show was invented, given what's at stake here, but it's really gorgeous and kind of heartbreaking. I rewound it several times just to see all the twitches in there: He's angry, but not so angry that he looks stupid, and he's hurt, but not so hurt that he looks weak, and he's scared, but not so scared that he's going to let you see it, and his worse fears have been vindicated, but not so much so that it makes him look sexist or shitty. Just a beautiful, scary moment.