The "TGS" gang returning from hiatus, only to be shocked by Jack's awful fall programming lineup. Meanwhile, bridezilla Jenna taps Liz to be her maid of honor, and Tracy is invited to a dinner party by Kenneth and Hazel.

Jack and Liz find themselves at odds over political satire at "TGS". Criss and Liz make a surprising relationship breakthrough. Meanwhile, Jenna, discouraged by the disappointing sales of her summer dance hit, is thrilled to learn that Kenneth's mother and her boyfriend still buy music.

Liz works to prove to Tracy that women are funny while simultaneously attempting to head off a meltdown from Jenna after some negative publicity. Jack tries out an unconventional dating strategy.

Realizing that Jenna could decide the Presidential election, Liz and Jack stage a debate to win her support and her followers. Kenneth turns to Tracy for advice on how to be an informed voter, while Pete tries to recreate the magic of the 2008 election.

Tracy and Jack engage in a battle of wits after Tracy depicts Jack as a villain in his latest project. On Jack's advice, Liz puts her own needs ahead of those of "TGS." Meanwhile, Jenna tries to shield Kenneth from Hazel's manipulation but her own selfishness gets in the way.

After an encounter with Dennis Duffy, Liz and Criss decide to take drastic measures to start a family. As Liz looks toward the future, Jack and Jenna evaluate their own self-worth, and Tracy laments a shocking medical diagnosis.

Jenna annoys Liz with her wedding envy, Jack devises a plan to avoid disappointing his visiting mother and Tracy attempts to cheer up Kenneth.

Jack asks Devin Banks to help him discredit Kaylie Hooper, Jack's teenage nemesis and KableTown's future CEO. Liz considers her options as she tries to become a mother. Tracy directs Octavia Spencer in his movie.

When Jack persuades Liz to go to Florida with him, they make a shocking discovery about his mother. Jenna and Tracy assume responsibility for the show in Liz's absence, resulting in disaster for Kenneth.

As her new kids arrive, Liz scrambles to save TGS from cancellation. Jack finds a new NBC president.

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.

Jenna prepares an emotional farewell song as the cast and crew reunite for one final "TGS".