In the season premiere, Rachel Zoe, Inc. is growing exponentially, and so is Rachel’s family. With a baby on the way, Rodger looks for a bigger house, while Rachel sets her eyes on launching her new fashion line. After an Elle Magazine photo shoot with her hubby, Rachel and Rodger jet off to a round of interviews for a potential new junior stylist to replace Brad. Hoping she’ll slow down and take it easy, Rachel tries to manage it all leaving Rodger concerned for her health and well-being.

It's back to the Big Apple, where Rachel and Rodger are set to unveil her first collection to the fashion industry's heavyweights. With a packed three-day schedule, Rachel's newest hire, Jeremiah, tries not to crack under pressure in his first big job as the newest member of the Rachel Zoe team. Rachel also recruits her friend Joey to help out, who she eventually tries to persuade to move to LA and work with her full-time. With all of the moving pieces and all eyes on her, will Rachel make the cut and make a seamless transition from stylist to designer

It's Viva Las Vegas for Rodger and his boys as they party it up in Sin City one last time before the baby's arrival. Meanwhile, Rachel and Joey prep for the Oscars, and Jeremiah is home-bound finishing up last-minute shopping for the big move. When moving day comes, Marisa sends Rachel and Rodger to a hotel for the day, so as to stay out of the way.

Rachel is busy planning for the Oscars, but when she gets sick, Rodger and her sister Pam worry Rachel's finally gotten too busy.

Jeremiah handles his first major gig, but wonders just how much time he has left at Rachel Zoe Inc.

It's couture shock when Rachel goes into labor. This causes a frantic rush to prepare for the baby's arrival and triggers the hiring of a former staffer to finish the nursery. Elsewhere, Joey braves his first solo style job by dressing actress Molly Sims in New York.

Season 4 closes with a juggle struggle, as Rachel tries to balance her work demands with her role as a new mother. Unwilling to part with her baby boy, she brings him to work with her. Meanwhile, an opportunity comes Jeremiah's way.