Everybody becomes confused when Liz suddenly becomes cheerful, Jack tries to talk Jenna out of being the mean judge in a children's reality talent show, and Kenneth prepares for what he believes to be the imminent Rapture.
Liz tries to keep a judgmental Jack away from her new boyfriend, Tracy begins an "idiot protest" in response public comments made by Liz, and Kenneth and Jenna accidentally break a box of fluorescent lights in the storage closet.
Jack officially disapproves of Liz's boyfriend, Tracy continues his protest, Devin Banks returns to blackmail Jack into getting his kids into a prestigious school, and Kelsey Grammer gets Jenna and Kenneth out of a sticky situation.
Liz finds a secret weapon to help in her contract negotiations with Jack, Kenneth leaves his job because he feels under-appreciated, and Tracy and Jenna perform at their accountant's ungrateful son's Bar Mitzvah.
Liz and Criss's relationship is put to the test during a trip to IKEA, Jack discovers that he and his mother in law are attracted to each other, Kenneth trains his assistant, and Jenna gets the "yips" before an important performance.
Criss and Liz decide to celebrate Valentine's Day, but they need to buy a dining room table first. Jack entertains his mother-in-law, Diana, as Jenna frantically looks to Pete to fill in last-minute as the producer of her first live performance on "America's Kidz Got Singing." Back at the office, Tracy and Frank try to help Lutz find someone to spend Valentine's with.
Liz gets tired of enforcing rules and good manners around the city, so she decides to break them herself. Meanwhile, Jack decides to run for mayor after hie is mugged, and Jenna and Paul fear their relationship has reached normalcy.
While everyone tries to get into the spirit of Leap Day, Liz and Jenna fight over an Internet billionaire, Jack has a major financial setback, and Tracy tries to spend a Benihana gift card before it expires.
In order to hide his relationship with Lynn, Frank convinces his mother that he is dating Liz. Tracy and Jenna team up to try to solve the case of Pete's missing whisky. Meanwhile, Jack teaches Kenneth how to take down his first business nemesis.
Jack matches wits once again with his high school nemesis, Kaylie Hooper. Meanwhile, Kenneth clashes with Liz in his new job at Standards and Practices, and Jenna finds her six biological children in an effort to get more publicity.
Dennis shows up at Liz's apartment on St. Patrick's Day and drives a wedge between Liz and Criss. Meanwhile, Tracy and Jenna fight over top billing in the St. Patrick's Day parade, and Jack plays a fantasy board game with the writers.
Liz tries to be a mentor for Hazel, who is making catastrophic mistakes taking care of Tracy, much to Kenneth's horror. Meanwhile, Jack decides to make a TV movie about Avery's kidnapping, and Jenna desperately tries to get the lead role.
The actor cast as Jack in his TV movie immerses himself in his character, including taking an interest in Avery's mom. Meanwhile, Jenna and Tracy try to outsmart Weird Al Yankovic, and Kenneth takes a new job as janitor.
Jack (Alec Baldwin) gets creative when his new business idea for Kabletown goes awry. Jenna (Jane Krakowski) stages a public breakdown to win back Paul (guest star Will Forte). James Marsden also guest stars.
Avery returns home from North Korea, and Jack suspects that she had an affair while she was there. Meanwhile, Criss is uncomfortable with swapping gender roles with Liz, and Jenna tries to learn a Southern accent for a commercial.
Jack discovers Avery's secret affair in North Korea just before they renew their vows, Criss is ready to make a bold move in her relationship with Liz, and Kenneth is forced to live with Hazel when his page application is rejected.