Jules pretends to be over her breakup with Jeremy at his sister's bachelorette party. Madison exaggerates the maturity level of her friends to impress her older boyfriend with a formal dinner party.
The girls navigate sex and dating in an age when monogamy shaming is the new slut shaming. Jules gets a rebound, Stella elicits Izzy's help in breaking up with a guy, and Madison yearns to define her relationship with Colin.
On the heels of Madison and Jules's blow up, all four girls end up in Mexico for a wedding weekend gone wrong: secrets are revealed, hallucinogenic drugs are taken, and Jules' commitment to her girlfriends faces the ultimate test.
The girls fear a potential major earthquake hitting Los Angeles, while Jules fears a different "Big One": running into your EX with a new girl. Stella rebels against Madison's need to control her friends' lives during an outing to SantaCon.
Jules deals with being sexually frustrated, while Madison meets an edgy prospective client. Stella mixes business and pleasure with Liv, her partner on the new work venture. Izzy and her boyfriend collaborate on a project.
The girls attend Stella's bar opening and make important decisions about their relationships, careers, and futures. Jules gives Madison a birthday surprise.
When Jules feels that her friend group is unraveling, she revives their made-up friendship holiday, Codependence Day. Madison gets closer to old friend Ruby despite Jules's skepticism about her. Stella tries to prove her commitment to Liv.
The girls must rescue Izzy from the clutches of the Alisons, and explore what it means to be your own villain and hero, in this subverted homage to the fairy tale genre.
Jules attends Woöm's company retreat, hosted by a professional spiritual leader. Stella hears back from business school. Jules learns upsetting news that will impact Madison's relationship and the future of their friendship.