When last we saw Sex and the City's fashionable foursome, they were off to their respective happily-ever-afters. But, as narrator Carrie (Sarah Jessica Parker) would likely put it, what does it all mean to live happily ever after? Four years later, Carrie and her beloved Big (Chris Noth) -- now given a proper name, John James Preston -- are still going strong. But when they decide to get married, what begins as a simple affair quickly gets complicated, threatening to overwhelm everything (much like Carrie's fantastical Vivienne Westwood wedding dress). Meanwhile, Brooklyn-based Miranda (Cynthia Nixon) and Steve (David Eigenberg) are stuck in a rut that gets a much-needed -- if painful -- jolt, and Samantha (Kim Cattrall), still with golden boy Smith (Jason Lewis), bristles under the constraints of an established relationship. Only Charlotte (Kristin Davis) seems perfectly happy (she's even pregnant!), but that itself gives her reason to pause, if only because she worries when the proverbial other shoe will drop.