At Castle, Sarah briefs ... no one, really, since they all knew what they were doing. I guess she's briefing us. The bad guy is Rafe, who is one of five people who can hit a target with a gun from half a mile away. And he's a chameleon and very few people have seen his face. Casey's not impressed, but Sarah says the Ring is, as they've wired $1 million into his account. Shaw says the enemy of their enemy is their friend, so they need to know who the Ring wants dead. Casey says he's perfect for this mission, since there's nothing this clown Rafe can do that he can't do. Shaw says Casey might be perfect for the mission, but they're going with Chuck on this one, and he's going to assume Rafe's identity. They talk about how he's ready, and then he comes in acting all goofy with a box of donuts. Shaw asks what's with him, and Casey says he must have gotten lucky on his date last night. Sarah looks uncomfortable. They catch Chuck up on Rafe (actually, once his name's said aloud, his Intersect brain catches him up). Then they tell him he's going to assume the identity of the world's most dangerous assassin.
Shaw and Sarah teach Chuck about assuming an alias, how even his innate reflexes have to change. Shaw slaps him across the face to get his point across. The plan: Casey's going to get the details of who Rafe's meeting and Chuck's going to go in as Rafe. Chuck's like, "Good luck with that," since Rafe's not really the type to spill details of his top-secret kills, but Casey fires up a blowtorch and says he can be very persuasive. Chuck follows him, to learn about Rafe. He actually says to the world's most dangerous assassin: "Assassin isn't exactly something one finds at a booth at career day. How did you become interested in this line of work?" Then "What was your most dangerous hit?" When Rafe says, "I'll take the torture over this man's questions," Chuck repeats it perfectly, impressing himself and Casey. Rafe's phone rings, and Chuck answers it in Rafe voice. He sets up the meeting with the caller, which he knows because it's right across from the cupcake place. Casey: "Not bad, Bartowski." Chuck: "Who the hell is Bartowski?" Me: "Why do they keep saying Chuck's real name in front of the world's most dangerous assassin?" Opening credits.