The Mandalorian comes face-to-face with an unexpected enemy.

We use the toilet every day, but how does it work — and where does our waste go? Jason Sudeikis guest-stars as a plumber in the know.

Liz reevaluates her feelings for an old flame, Floyd, when he returns with big news, and Jack Donaghy teaches Danny Baker the finer points of pranks after the TGS writers…

Jack becomes even more entangled in his love triangle between Avery Jessup and Nancy Donovan, and he turns for advice to Liz, who is focusing on her own romantic problems….

Liz questions fate when she meets the man of her dreams, while Jack’s love triangle between high school love, Nancy Donovan, and CNBC anchor, Avery Jessup, comes to a head….

Liz schedules a root canal to avoid feeling lonely on Valentine’s Day; Jack woos an attractive and successful TV host; Jenna’s stalker loses interest.

Jack and Kenneth work together when Jack discovers that another NBC executive is after his job. Meanwhile, Pete and Liz adjust to life as roommates and Tracy receives paternity papers.

The tables have turned inside 30 Rock: Liz is actually happy in her new relationship with Floyd while Jack finds his job may be in jeopardy after his televised fireworks…

Sick of New York and frustrated with his career, Floyd contemplates a move to the Midwest and asks Liz if she’s consider leaving TGS behind. Jack rushes to Paris (and…

As TGS’ summer hiatus approaches, Liz deals with the difficulties of her long-distance relationship with Floyd while she enlists Kenneth’s help in locating on-the-lam Tracy. Meanwhile, Jack’s impending marriage to…

It’s Valentine’s Day, and the TGS crew is celebrating by pulling an all nighter to put together a new episode. While Pete completely forgets the holiday, Kenneth and Cerie may…

Jack forces Tracy to attend the Source Awards and Kenneth has words with a rap artist. Meanwhile, Liz goes to great lengths to prove to her African-American date that she’s…

Jack helps his brother Eddie land a job at ‘TGS’, Liz is forced to make desperate staff cutbacks, and Tracy seeks spiritual fulfillment with help from Kenneth.

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,…

A blast from the past prompts the guys to expand membership, and Dee to re-consider her future.

The gang come up with a new plan to buff their tarnished high-school reputations at their reunion.