Steve asks Berta for her opinion on which neck tie he should wear at his wedding. Berta tells him no one will be looking at the groom. Berta mistakes D.J. for Steve's bride-to-be, and give her CJ's wedding dress to try on. When D.J. has the dress on Berta takes photos of the 'lovely couple' and later sends them copies to their phones.
Berta recognises D.J. and joins her, Stephanie Tanner, and Kimmy Gibbler. Steph reveals D.J. has been imitating Berta for the last two years. Berta admits to imitating D.J. for the last two years; "Oh, my Mylanta, wrong dress". Berta offers the girls a good deal on wedding dresses if they do her a favour. She would like them to be her models for a runway show because she lost her models. The girls refuse because they only have a limited time at the expo. Berta offers a 5% discount, but they still decline. Then Berta bribes them by saying she'll tell security they smuggled Fernando into the expo.
D.J., Stephanie, and Kimmy wear Berta's bridesmaids dresses in a backstage dressing room. Berta interrupts their overlapping arguing because it's time to get out on stage.
Fernando, Steve, and Jimmy have their tuxedo fittings. When they step out of the dressing rooms, Berta likes the tuxedos that Fernando and Steve picked out, but not Jimmy's. Steve suggests they all have one cohesive look for the wedding. Berta thinks they should go with Steve's tuxedo because it's perfection. It's her signature tuxedo.
Berta is highly offended when Max calls her signature tuxedo the worst of all. So Berta decides not to let the guys have any tuxedos and she will also be cancelling D.J., Stephanie, and Kimmy's wedding dresses. Jimmy texts Stephanie, who rushes to the shop.
Stephanie tells Max to apologise to Berta for hurting her feelings. Max apologises to Berta because he can't apologise for being right. Stephanie explains to Berta she knows it's probably just another tux, another, dress, another wedding to her. But not for Stephanie who thought it would never happen. This will be the day she gets to marry the love of her life alongside her sister and best friend who gave her the baby she never thought she'd have. Berta's not impressed but Max is moved by Stephanie's speech. Max apologises not only in English but in Russian too. Berta accepts the apology, and lets everybody have their tuxedos and dresses.