It's the day of Annie and Alex's wedding but danger casts a shadow over their nuptials. Does wedded bliss await or will it be unhappily ever after for the new Mr and Mrs Murdoch? The course of true love runs no smoother for Pete and Caitlin when he makes a confession that jeopardises their engagement. Scarlett tries to bring her family together for a day of bonding, much to Madonna's disappointment.