For as long as anyone can remember, it’s been Amy and Jo, the inseparable Sharp twins, and Amy and Ben, the high school sweethearts turned husband and wife. But now, Jo’s whirlwind engagement and wedding ceremony now eclipse the twins’ 30th birthday. Recent arguments have left Amy and Ben's marriage feeling flimsy. And as the family beach town transforms into “Jo’s Wedding Weekend,” this trio will be tested by the most unexpected hurdle yet: the arrival of a handsome, mysterious newcomer in a Best Man suit. One whom Amy had planned to never see again. Amy is forced to confront her worst doubts: What if her fastidiously planned life hasn’t been her destiny all along? And what if the people Amy loves the most have been the very same things standing in her way?