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 next morning, Big Mike arrives at the store and is oblivious to the place having been completely cleaned out until he reaches his office and discovers his prized Marlin is missing.
While Big Mike grills the rest of the employees with Detective Conway (Mark Derwin), he demands to know where Casey is and sends Chuck to find him.
They find a total of 29 short-range GLG-20 listening devices including the one Chuck discovered, but there's no sign of a receiver for the bugs.
The government team discovers that the store's security system was mistakenly turned back ON by Jeff and Lester the night before, and caught the Fulcrum agent who planted the bugs on tape.
They cannot identify the agent, but the security tapes shows the receiver being placed inside Big Mike's Marlin.
Throughout the first half of the episode, Lester is on the verge of panic and acts suspiciously, while Jeff continuously threatens him if he "talks."
After Jeff was cut off (again) at the local Bennigan's bar, he and Lester came back to the store to access Big Mike's stash of liquor in his desk.
Jeff suggests they burn it down, while Lester instead decides on stealing something and makes off with Big Mike's Marlin, which they stash back at Chuck's apartment.
Before he can extract any more information from him, the Schwarma Girl arrives with a lunch delivery from Pita Palace and Morgan slips out.
She makes a delivery for Jeff and Lester at the beginning of the episode and hangs out for a bit, where they film her on "Mammary Cam" before she leaves.
He sneaks out of Big Mike's office through the ceiling and finds the "Mammary Cam" recording in Jeff and Lester's secret hiding spot.
He returns to the office and uses Big Mike's computer to view the video, and confirms his suspicions and sees Jeff and Lester had caught Lizzie planting a bug without realizing it.
Lizzie is the Fulcrum agent and Chuck hurriedly sends Sarah an e-mail before Big Mike and Conway return, after which they let him leave and call in Casey before he can further interrogate Morgan.
Meanwhile, Lizzie, who had overheard Morgan telling Jeff and Lester where he hid the Marlin, heads to the Wienerlicious and arrives just as Sarah receives Chuck's warning.
After Casey is finally released from his interrogation, he tracks down Morgan, forcing the location of the Marlin from him, and hurries to the Wienerlicious.
Longshore tries to encourage Chuck that things aren't going to be so bad in government custody - he'll have every amenity he needs, and will be allowed outside in controlled locations.
Chuck asks her to tell his family and friends something to make his disappearance easier to bear, and that since they no longer work together, he and Sarah can be honest with each other about how they really feel.
The receiver is recovered, and Big Mike arrives at the store the next morning to find that everything is back, including his Marlin (which is now held together by duct tape).
Chuck tries to buy more time by convincing him to carefully consider how he intends to ask, finally settling on a romantic dinner with the ring hidden inside dessert.
The ring isn't on Lizzie's finger when they take her into custody, so Chuck asks Sarah to help him search the dumpster where he finally finds it.
[3] The episode was described as more lackluster by IGN, and that "Chuck Versus the Crown Vic" would have made a superior season finale.
The humor of Big Mike's anger over his missing Marlin, despite it being revealed that he ordered it from eBay and hadn't caught it himself, received high marks, as did the convoluted story, the episode's use of much of the main cast, and the strong interweaving of Chuck's two worlds.
IGN found the most poignant and effective scene to be Chuck and Sarah's talk on the rooftop before his imminent extraction, and Levi's ability to so easily turn from comedy to drama was highly praised.