MORGAN KRANTZ

When a group of young twenty-something neighbors moves in across the hall, Jess and Schmidt are determined to become friends with them. Meanwhile, Nick enacts a series of pranks on Schmidt to make him think he’s getting old.

Hannah reveals her Forrest Gump-induced AIDS phobia when she realizes Adam might not be practicing monogamy. Marnie lives in denial of her growing boredom with (and sexual repulsion by) her long-term boyfriend Charlie; Jessa avoids Marnie's meticulously planned day at a women's health clinic, where Shoshanna confesses a humiliating secret.

Taco takes on the end of Daylight Savings Time. The guys try to help Lane during a difficult time. Andre and his cat M'Lady are on the rocks.

In the fourth season premiere, a television producer approaches Max and Caroline about shooting an episode of a Kardashians’ reality show at their cupcake window. Guest star KIM KARDASHIAN WEST (Keeping Up with the Kardashians) appears as herself.

At the office, Eddie and Deirdre compete for Alex's time and butt heads, causing them to almost quit. As a result, Alex tries to be a good boss by coming up with a solution to split his time between the two. Meanwhile, Alex does not like Rooni's handmade costume for Ben's class project on famous people, so they come up with a surprisingly different choice.