The kids worry that Leni is too weak and they try to teach her how to be more aggressive.
Leni is getting herself ready for a blowout sale at Reininger's, and is encouraged by her siblings. Sometime later, Leni arrives back home, battered up and with no new clothes, saying that she got nothing due to the common nature of the shoppers. The siblings realize that Leni has become a pushover, and has trouble putting herself first because of her extremely kind nature. While fighting for the remote, Lincoln realizes that they themselves could help make Leni be more assertive.
The siblings tell Leni their intentions of making her a better shopper, and Leni agrees to let them help. For training, the siblings help Leni fight those who cut in front of her in a line, fight through a crowd hoarding an entire shelf to themselves, and fighting anyone who grabs clothes before her. At first, it doesn't go smoothly due to Leni's kind nature, but she eventually learns to adapt a more aggressive attitude.
The next day, Leni arrives at Reiningers. When a man cuts in front of her, she tackles him, successfully scaring him off. Once the store opens, the customers quickly rush in, and Leni, seeing a bunch of women hoarding the swimsuit shelf, shoves right through them to get the last one available. Throughout her trip, Leni uses her siblings' advice to get everything she wants, and successfully ends up with a bag full of clothes for her to buy. Happy with her success, the siblings decide to go to the food court so they could celebrate.
As Leni waits in line, she witnesses an old woman looking for a swimsuit for her granddaughter. Feeling bad for the old woman, Leni decides to give her the swimsuit she got. After giving the swimsuit away, a woman who is allergic to nearly every known fabric arrives, looking for a dress with a fabric that she's not allergic to, and Leni, realizing that she has the last one, gives it to her. When a man runs by, he accidentally drops his banking card (which Leni grabs), and explains to Leni that he's in a hurry to find a tie. Leni, knowing that she'll be giving up her place in line, decides to help the man out. While all this is happening, the siblings are having a discussion on what Leni's future might be. After helping everyone out, Leni finally reaches the counter, and is only left with one piece of clothing, and seeing how the cashier never gets a chance to shop herself, decides to give it to her.
Leni arrives at the food court, and the siblings, noticing that she doesn't have anything, ask what happened to her stuff. Leni explains that her new personality is no more, because even if she did get the things she wanted, she feels more happy helping those out, even if it means she has to put herself after them. Just when the siblings become flabbergasted at the fact that all their work was all for nothing, Leni receives several presents from the people she helped out, such as a present from the old woman, a dozen boxes of fries from the woman with the allergies, and a gift card for the froyo shop from the tie guy. Suddenly, Ms. Carmichael, the manager of Reiningers, offers Leni a job opportunity at the store, and Leni gladly accepts, as she and Ms. Carmichael head off so she can fill in the paperwork. When Lincoln and Lynn realize that Leni's kind nature got her rewarded after all, Lola, thinking she'll be rewarded if she does the same thing, attempts to give her fries to a shopper, but when he declines, Lola threatens him to take them, making the shopper run away in terror, leading Lincoln to tell Lola that she should stick to what she knows best.