Chuck fears the CIA's new operatives (Isaiah Mustafa and Stacy Keibler), who have downloaded the Intersect, will render him obsolete.

Sarah worries that the CIA is replacing them with Casey's extremely efficient team, but Chuck considers himself irreplaceable with the Intersect.

Rick and Vicki flash on a surveillance video, learning that Pichushkin is transporting a fully assembled bomb.

When Pichushkin arrives, Rick and Vicki shoot his bodyguards, before he reveals that he is carrying a suitcase nuke and has possession of a remote arming device.

And it helped that they came in a strong overall episode, one that featured a good character arc for all three original members of Operation Bartowski - not to mention one that brought back the government's ongoing desire to have someone other than Chuck have an Intersect in his head.

Wouldn't it have been more interesting to have had these two, and their much more clinical, methodical approach to using the Intersect, stick around for a few episodes, as Chuck has to process what it might mean for his future?