Liz befriends a pregnant teenager from a donut shop she visits in the hopes to adopt her baby. Kenneth plans a combined birthday party for Tracy and Jenna, but Jenna wants all of the attention and a party of her own. Jack agrees to go out and party with Frank to keep his mind off of his absent girlfriend and ends up bonding with him over their parental issues.

Liz Lemon meets her mother's old flame, while Jack Donaghy's mother, Colleen, gets tangled in his relationships with Avery Jessup and high school love, Nancy Donovan. Jenna's mother, Verna returns, while Tracy learns a lesson from his "mom".

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.