Liza returns to Empirical hoping to resume business as usual; Charles announces a new project that spurs several unsettling revelations.
Liza and Kelsey seek out a potential business partner for Millennial; newlywed Josh returns to Brooklyn; Charles sees Liza with fresh eyes.
Liza faces complications on the "Marriage Vacation" book tour; Kelsey and Zane head to Washington, D.C., to court a speechwriter's prospective memoir.
Liza takes a chance on a charming journalist, both professionally and personally; Diana steps outside her comfort zone.
Liza's secret forces her to think on her feet; Kelsey gets familiar with her new author; Josh grapples with the commitments he's made.
Charles calls in Liza after running into trouble with a rock-star author on Shelter Island; Maggie reaches a career milestone.
It's Christmas in New York; Liza celebrates with Caitlin; Kelsey finds herself caught up in a web of her own making; Charles makes up his mind.
After the holidays, Liza adjusts to a new normal; Maggie confronts buried issues; Kelsey course-corrects her love life.
Liza and Kelsey find themselves at odds when a self-made billionaire pitches a book on power to Millennial; Lauren proves her worth.
Liza is distressed when she meets Caitlin's middle-aged boyfriend; Diana refuses to back down from a challenge; Josh rebrands.
The Empirical gang heads to Frankfurt for the world's biggest annual book fair.