E! Online has a little bit of news about Chuck episode 4.23, “Chuck vs. the Last Details”, the one that airs right before the season finale:
SadieJezierski: Chuck scoops!
Episode 23 is called “Chuck versus the Last Details.” Our favorite engaged couple are putting the finishing touches on their big day while working on opposite sides of the planet: Chuck’s going to be running a mission in a Colombian prison, while Sarah’s off somewhere speaking Koreanâ€”so she’s either in North or South Korea or, well, maybe just L.A.’s Koreatown. Will our favorite spies make it to the altar in time? We’ll probably have to wait until the last possible minute to find out, but does anybody doubt that the long-long-long awaited Chuck-Sarah union is going to be amazing and completely worth the wait?