Revenge can be sweet, can't it? On this week's Chuck [1], we find out what happens to you when you break a guy's heart, sleep with his best friend, turn up later to profess your love, and wind up being a government spy. (Short answer: nothing good.) But revenge isn't easy, as Chuck's feelings and general naivete get in the way time and again. To chat about this episode, just .

All season, we've built up to Chuck actually being a competent spy, andin "Chuck vs. The Gravitron," he does a lot of rather hardcore stuff: starting the Gravitron; running away into the hall of mirrors; hacking into the Castle's computer system; kissing Jill even after he knows she's out to get him, all for the sake of the mission. No matter how much you were initially rooting for Chuck and Jill's romance, didn't you cheer a little bit when he led her into the "detention" version of the Nerd Mobile?

Not that it was easy. Chuck's emotions get in the way a lot, and once in particular it seems nearly fatal — not just for himself but for Casey and Sarah as well. When Jill's hooked up to the lie detector, he sees his chance to finally get some answers about whether Jill loved him. He's relieved to learn that Jill never slept with Bryce at all; that was just Fulcrum's way of getting her out of the relationship. But at the slightest hint that they could be together again, Chuck gets all stupid and frees her. Sure enough, Chuck has a gun pointed at his brain just seconds later. Good thing he's used to that sort of thing by now.

Instead of a traditional love triangle, this episode has more of a "please don't kill me" triangle, with Sarah begging Jill not to hurt Chuck and Chuck begging Sarah not to hurt Jill (but going after Jill when he sees he's about to hurt Sarah). And has there ever been a better arrest line than "You're under arrest, Jill, and I'm breaking up with you"? But the finest moment belongs to Big Mike, who responds to the distress call at the Buy More still all gussied up in his fishing gear, throws Leader into a wall of electronics, and then congratulates Casey for stopping theft.

Some other thoughts:

• Ellie's completely hilarious in this episode, freaking out about Thanksgiving with the Awesomes by cooking test turkeys and uninviting Morgan. When the Awesomes can't make it, she realizes what a mistake she made — which is good, because Morgan's already outside, rustling around in a garbage can for one of the test turkeys.
• Also, good for Ellie for finally getting Chuck's hot-girl slo-mo treatment.
• For the record, I don't know where they'd put a carnival in Palo Alto.
• Loved the Buy More scenes, with Jeff carefully setting his trip wire ("it's kind of sad — he tripped over it last year") and Lester being shocked that there's more to Thanksgiving than turkey wrapped in plastic.
• No matter how much Chuck might have wanted to believe in Jill, the Intersect in his brain doesn't lie. The second he knew her Fulcrum nickname, it was over.
• Fulcrum's pretty creepy, huh? From leadership seminars to controlling your love life.
• The end of Big Mike's sob story about thieves: "Husky lads throughout Burbank went without britches for Christmas."

So, Jill's detained, Chuck's single again, and Thanksgiving's saved for another year. And somehow, Fulcrum still doesn't know Chuck's the intersect — but I doubt we've seen the last of them. What did you all think?

Photos courtesy of NBC [2]