The gang at "30 Rock" returns from their summer hiatus. Liz's excitement to be back and see Jack is quickly squashed when he tells her that despite what she thinks, she is not over Floyd.
On the heels of Jack realizing that GE head, Don Geiss may be retiring, Jack's nemesis, Devin, returns engaged to Don's daughter, even though he's gay.
Jack hires his own private investigator, Len, to cut off any chance of GE digging up dirt against him. But giving up his secret cookie jar collection is too much of a sacrifice.
When Liz meets her idol, Rosemary Howard, she invites her to be a guest writer on the show. However, Rosemary's radical ideas that Liz grew up admiring are now too controversial for Liz's NBC show.
As part of a GE-wide green initiative, Jack has come up with the idea of creating a green mascot for NBC - a Philly Fanatic-looking character named Greenzo.
Jack attends a cocktail party honoring Colin Powell, where he meets and falls for C.C., a Democratic congresswoman from Vermont. Although they are on the opposite sides of the fence, Jack and C.
As part of his community service, Tracy takes on the duties of coaching an inner city little league team from Knuckle Beach, the worse neighborhood in New York.
C.C. wants to go public with her relationship with Jack, but Jack is still very reluctant. Meanwhile, Liz continues to appease both Tracy and Jenna as stars of "TGS with Tracy Jordan.
It's holiday time and the staff of "TGS with Tracy Jordan" is having their annual "Luda Christmas" party - complete with music, merriment, "The Human Table" and a Horny Santa.
Jack meets with German TV executives to close a deal on the purchase of the largest cable network in North America. Motivated by Jack's financial advice, Liz decides to invest in real estate, but must appear before a co-op board to lobby for the apartment she loves.
While watching the riveting finale, pitting Debra vs. Deborah as the final two Milf’s, Jack who is riding high on this programming feat is blindsided by a blind item that ran in the New York Post.
Jack wants Liz to book The Subway Hero, New York's newest celebrity, who jumped in front of a train to save a total stranger who had fallen on the tracks. It turns out that the hero is none other than Liz's ex boyfriend, Dennis, The Beeper King.
Don Geiss decides to name Jack his successor as the Chairman of GE, over Jack's rival, and Geiss' future son-in-law Devin Banks. Jack, in turn, chooses Liz as his successor because she "always has his back," and he can trust her.
Liz gets a phone call from her ex-boyfriend Floyd, whose flight has been cancelled and needs a place to stay overnight. After a decision by the Board of Directors', Jack is demoted down to the 12th floor causing him to question his future with the company.
Jack assumes a new political role in Washington, DC. When the job is not what he expected, Jack partners with another government employee, Cooter, to come up with a plan to get fired.