In the first episode of the final season of “Broad City,” BFFs Abbi (Abbi Jacobson) and Ilana (Ilana Glazer) celebrate Abbi’s 30th birthday by walking the length of Manhattan, Inwood to the Battery. They shoot video of dirty water — “city juice” — on the subway tracks. They visit the stately Morris-Jumel Mansion. They get chicken and waffles at Red Rooster in Harlem. They get their hair braided on the sidewalk.

Then Ilana falls into a manhole. (Or as she calls it, a “womanhole.”)

The episode, an ingenious love letter to friendship and the city in the form of an Instagram Story, perfectly encapsulates the relationship of “Broad City” with the second half of its title. Its New York City is a frenemy that charms you and grosses you out, embraces you and picks your pocket, shows you a good time and tries to break your foot.