Worried that Liz's hectic lifestyle may be too much to adopt a child, Bev, the adoption agent, visits the set. Panicked, Liz tells everyone to act normal, but chaos soon ensues as a fight arises between Jenna and Tracy. Meanwhile, Jack returns to 30 Rock and vows to do whatever it takes to get his position back from Devin.
In the second season finale, Jack moves on to a new job involving politics in Washington, but the position is not quite what he anticipated. Meanwhile, Liz suffers a pregnancy scare, Kenneth confronts rival page Donny when applying for a summer job, and Tracy works on his latest invention.
Floyd stays at Liz's place overnight when his flight is canceled. Meanwhile, Jack is demoted to the 12th floor, causing him to question his future status at the company. Finally, the staff celebrates Annual Sandwich Day with mysterious sandwiches from a secret location in Brooklyn.
When Don decides to promote Jack and make him his successor over Devon, Jack decides to give his old job to Liz because she always has his back. However, a turn of events concerning Don's health compromises Jack's promotion. Meanwhile, Tracy thinks that his son is embarrassed of his career because he did not invite him to fathers day at school.
Dennis becomes a New York City celebrity after jumping in front of a train and saving someone who fell on the tracks. Meanwhile, Jack desperately tries to persuade Tracy to become the celebrity face of the Republican Party.
When someone on the 'TGS with Tracy Jordan' staff insults Jack in a newspaper article about the season finale of 'MILF Island', he frantically sends Jonathan to interrogate everyone on 'TGS' until the culprit is found.
Jack gets attached to Liz's nurturing parents because they provide the love and support he never got from his mom. The staffers get ready for their raunchy holiday party, but Kenneth changes their plans at the last minute.
C.C. and Jack face a block in their relationship when C.C. decides to go public about the affair but Jack refuses. Meanwhile, Liz struggles to keep both Tracy and Jenna happy when the two find it hard to share the spotlight, while Frank makes fun of Toofer's Harvard education with bizarre results.
Jack falls for a congresswoman he meets at a cocktail party and despite the fact that they hold opposite views, the couple agrees to put politics aside and have a secret affair. Meanwhile, Liz believes her Middle Eastern neighbor to be a terrorist and tips off Homeland Security, creating a big mess.
Jack hires his own private investigator to lead GE in the wrong direction so that they will not be able to find any dirt on him that might put him in a compromising position. However, when he is asked to give up his cookie jar collection, Jack finds the task too much of a challenge. Meanwhile, Angie announces that she will follow Tracy at all times to keep him in line, which Liz believes to be good until she covers for Tracy and gets on Angie's bad side. Finally, Jenna starts to worry once she starts to lose all the weight she gained over the summer and her popularity begins to hang on the line.