One Big Happy (2015)

S1E5 A Tale of Two Hubbies

During their trip to Las Vegas, Luke, Prudence, and Lizzy stop by the chapel where Nick and Prudence tied the knot, only to find out that their marriage was a fraud and isn't legally recognized. Determined to make things right, Lizzy decides to organize an extravagant new wedding complete with a special twist. However, the group soon uncovers an even more shocking revelation about Prudence's previous life back in England.