All the Misters are gathered together on Five's island paradise for the most outrageous wedding in the history of weddings. Mr. Perfect wants one last dream-date with Ellie. Mr. Romantic is trying to learn how to be a "girl-dad". Mr. Corporate needs to know why his adopted son is sneaking out at night. Mr. Mysterious is on a bizarre scavenger hunt for his crazy Cinderella. Mr. Match is desperate to give Katya the dream wedding. And Mr. Five... well, Five didn't raise his family on a secluded tropical island just so his teenage daughter could up and leave one day.