Secrets of a Happy Marriage - Grand Format

A family gathering, a moment of celebration, a time to come together - and fall apart... Recently married Bess should be blissfully happy, but as she plans a party for her husband, the cracks are beginning to show. Jojo, Bess's stepdaughter, has a point to make : Bess has swept into her father's life but she won't ever replace Jojo's late beloved mother. Cousin Cari is a strong career-woman who isn't unnerved by anything - apart from facing the man who left her at the altar - and he's on the guest list.
As the party brings them all together, can the Brannigans discover the secrets of a happy marriage before it is too late ?