Andy Sachs is all grown up -- she's about to get married. And her chief bridesmaid is none other than her arch enemy, Emily from Runway -- who she's set up a new magazine with. A magazine founded on all their experience of working for Miranda Priestley, but a very different creature -- small, boutique, upmarket and growing. From their tiny offices, Andy and Emily have achieved success and now juggle cash-flow, crazy schedules and their dreams of expansion. And so far, despite trading a bit on her name, they've steered clear of their old boss.
But when Andy's world is rocked by a hint that her new husband may have been misbehaving -- and then an unexpected pregnancy -- following her dream of running a successful magazine suddenly becomes less straightforward. Especially when Miranda is following their progress with interest...