Chuck Versus the Marlin
"Chuck Versus the Marlin" is the 13th episode and season finale of the first season of Chuck. It aired in a special two-episode block on January 24, 2008 with "Chuck Versus the Undercover Lover." Chuck's time as a civilian may be coming to a close when a Fulcrum bug is discovered at the Buy More, while Devon asks Chuck for a very personal favor.
Plot summary
The episode begins with Jeff and Lester reviewing footage they shot of women's cleavage with one of the store's demo cameras when Chuck arrives to remind them of Big Mike's warning about "Mammary Cam." The two Nerd Herders protest the accusation, but while chewing them out, Chuck is confronted by Devon who wants to ask him a question. Chuck discovers a bug hidden on one of the Nerd Herd's displays and flashes. He has to dodge Devon for a moment to confront Casey, who he believes had placed the bug. Casey denies it and leaves. Chuck then returns to where Awesome is waiting at the Video Wall. Devon has come to ask Chuck for permission to marry Ellie, as he considers him the man of the family. Chuck gives his blessing and Devon asks Chuck to hide his great-grandmother's ring so Ellie can't find it. Meanwhile, Casey alerts Sarah about the bug, and she acknowledges that they have a problem. General Beckman identifies the device as a Fulcrum bug, and tells them Chuck's time as a civilian may be over.