This episode for me was the best this season. Sarah (cia agent assigned to protect Chuck), John Casey and a relatively unknown DEA agent Carina are sent to recover a diamond. But this is no ordinary diamond, for if the diamond was to fall into the hands of a terrorist it could be used to fund the purchase of various arms and weapons. Chuck and Sarah encounter personal problems and Carina(DEA agent)causes more problems. A great episode overall, giving insight into the responsibilities of undercover field agents and the risks they must take.
Well written,funny,not a dull moment.A great episode of Chuck, recommend it to everyone.