Jack and Estefan's wedding takes a detour when they're forced to get married at the airport by their friend Miss Coco. Will's worried his relationship may turn long-distance. Grace meets a charming guy. Karen reconsiders her commitment to Nikki.

When Grace admits she's not sure who's the father of her baby, Karen orchestrates a Mamma Mia situation with the potential baby daddies. Will worries what will happen if he has a straight son and enlists Jack to help him prepare.