When Jack discovers that his boss is retiring, he decides to get in the competition for his position. Meanwhile, Jenna begins to enjoy her fame for being fat and along with Jack encourages Liz to get her act together. Finally, Kenneth makes it his mission to get Tracy and Angie back together.

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.

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.

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.

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.

Jack manages to convince a reluctant Liz to attend her high school reunion. Meanwhile, Don Geiss awakens from his coma and shocks Jack with a declaration of who he wants to be the CEO of GE. A shaken Jack decides he needs to get away and blow off some steam, but tags along with Liz to her reunion instead due to bad weather.

Liz and Pete try to rig the audition process; Tracy and Jenna decide they should conduct their own search for the next 'TGS' star.

When Liz's apartment building is converted to condos she has to make a drastic change to her living arrangements. Meanwhile, Jack and Tracy reevaluate their plans for parenthood and Kenneth is on a mission to make "TGS" greener during NBC's annual "Green Week."

Jack needs to reestablish himself within the new corporate structure. Liz and Wesley continually run into each other, making them consider fate's role in their lives. Tracy's nanny writes an exposé.

Wedding fever hits TGS, leaving Liz to sort out Grizz's dilemma when both Tracy and Dot Com want to be his best man. Jenna's new boyfriend, Paul, raises Liz and Pete's suspicions, while Jack is finally forced to deal with the death of his mentor, Don Geiss, when Geiss leaves him a strange but meaningful inheritance.

Tracy Jordan challenges Liz by leading his own protest in defense of idiots everywhere. Jack faces off with Devin Banks yet again, but still finds time to interfere with Liz's relationship by giving Criss an ultimatum, and Liz tries to get rid of Jenna's new assistant.

Liz has trouble adjusting to being a stay-at-home mother. Jack takes stock of his life, and Tracy struggles to get on without Kenneth.