It's Jenny and Tim's wedding day and Tony is determined that everything goes according to plan. Emma is their bridesmaid but is anxious to take part in the annual Jessop Square North vs Jessop Square South grudge match. Somehow, she has to be able to play.

Things get off to a disastrous start when Brenda and Emma, in an attempt to help Jenny into her wedding dress, accidentally rip it in two. Somehow they have to find an alternative wedding dress. They've got two hours to go and the clock is ticking. Not only that but Jenny has tasked Brenda with finding her all her lucky old, new, borrowed, blue things. "I didn't think you wanted all that traditional nonsense." "I am going to have a perfect traditional wedding if it kills me. Or you."

Tim, racked with nerves, is of no use to anyone. Tony has to take charge. He sends Emma round to the Palmers. Dee makes costumes for the Ancroft Players and she might just be able to help.

The Palmers arrive to save the day. They've got a costume that might just fit the bill. It's a whale costume from Moby Dick. Jenny is aghast but after some persuasion she realises this is her best bet in the time available. "You've got just under two hours to make this the best whale based wedding dress anyone has ever seen."

Meanwhile, Tony is running round frantically trying to gather all the old, new, borrowed blue things for Jenny's perfect traditional wedding. Emma is keeping an eye on the grudge match "It's not over till the woman from number 47 shouts at us" but in so doing, she's getting herself steadily messier.

The dress is finally fixed and they all get to the registry office just in time for the wedding. Tony's lost his readings and has to recite the first poem that comes into this head. "Mary had a little lamb..." Tim takes over and gives the speech of his life. They've done it. They've got married.

Emma makes it back in time for the final moments of the grudge match, scores and secures victory for her team.