A Birthday Kristy Will Never Forget!

Synopsis
The episode begins with Marcus and Yoshino Making out in a tunnel and when they emerge they receive a very cold welcoming, as they have now entered the snowy northern part of Sinnoh. Just ahead is Odaiba the final stop before Naughtyville so the gang decides to take a pit stop before moving on. While in a Digiegg Yoshino asks after a package that is due to be delivered to her, however T.K. informs her it hasn't arrived yet. To pass the time, Yoshino lets Lopmon out of her Digivice to let her have some fun with the other Digimon. Then, a stranger comes racing for Buneary and starts to hug and play around with it chanting the phrase "so cute", the stranger is a girl called Kristy, who believes cute Digimon are the best. She explains that her criteria for cuteness is that the Digimon must be under 2 feet tall and must not have evolved, therefore Yoshino introduces Lalamon to Kristy to see if she think Lalamon is cute or not. Despite the fact that he meets her requirements, Kristy discourages the fact he's cute and starts to remark on the features that turns off Lalamon's cuteness, thus enraging Yoshino and causing Lalamon to be paralyzed in shock. After calling Yoshino "Yoshy", claiming it was a cuter name than Yoshino, Kristy is challenged to a battle, which she accepts.

Once the battle begins, Yoshino uses Lalamon causing Kristy to infatuate over Lopmon's cuteness, almost forgetting about the battle, she then sends out Rosemon. At the start of the battle, Kristy orders Rosemon to use  when Buneary attacks with ... however Cherubi still recoils in pain even though Protect was successful. Brock realizes that this is simply Marilyn's attempt to stall the battle, making him angry and he orders her to battle properly or be disqualified. Marilyn tells Davis what she thinks battling is, which is the valiant of a Pokémon and how it stands up after being hit, thus enraging Brock and yells at her some more, she finally obeys Brock and defeats Buneary with a single. Marilyn is very pleased with herself, while Brock refuses to believe that a Pokémon's cuteness is their only asset in battle.

Nearby The evil Digimon plans on taking Kristy's by tricking her to battle them, seeing as they have no Digimon below 2 ft or unevolved, Mimi tells them to use Palmon (Adventure) Joe hastily disagrees but has no choice. Mimi confronts Kristy and tells her she wants to battle and shows Palmon to her, Kristy however disagrees that it's cute crushing Palmon feelings. Soon, Joe is comforting his devastated Digimon while Mimi and Agumon (Adventure)work on the plan some more.

Davis tells Kristy that he wants to battle her and says that she can pick the Pokémon she battles, allowing her to choose from and. Marilyn doesn't want to battle either of them because they aren't cute and asks Brock if he has another Pokémon. Brock releases and Marilyn wants to battle her, Brock accepts but as long as Sudowoodo and Croagunk battle too. Marilyn agrees so a 3 on 3 battle it is. Then James enters disguised as a Pokémon Battle referee offering his services and Marilyn, not realizing this is a little too convenient, asks him to officiate the battle.

After Joe announces the rules, Kristy and Davis sends out Rosemon and Agumon, Agumon starts with Pepper Breath which scores a direct hit, making Rosemon fall down dramatically. Kristy however ignores the fact it hit and remarks on how Rosemon took the hit, causing Davis to scold her some more. Davis orders Agumon to use Pepper breath causing it to fall down dramatically too. Davis then tells Agumon to Digivolve and Agumon is soon Digivolving! This causes Kristy to start realizing the true battle strength of Digimon. Wanting to move things along so he can see what other Digimon Kristy has, Joe declares the round as a tie as the two trainers return their Digimon to their Digivices.

Davis sends out Veemon while Kristy sends out Lillymon and the battle restarts. Gabumon gains the upper hand against Lillymon, this is all however a act played out by Marilyn to see Lillymon take the attacks, Yoshino then talls her to get to the point with Kristy hastily obeying. Kristy orders Lillymon to use Needle Spray along with Flower Power and Patamon is almost knocked out. Davis isn't willing to give up and encourages Patamon to get up, and not wanting to let Davis down it does and uses Bubble Blow, defeating Chingling. Davis tells how any Digimon can be valiant regardless of their looks, unless the trainer bonds with their Pokémon. The two then return their Digimon, with Davis congratulating Patamon on an excellent battle.

With the lesson taught by Brock, she switches a Poké Ball containing a cute Pokémon for another Pokémon, which her friends mocked her for thinking it was her cutest Pokémon and thus changed her team to fit their perception. She then sends it out revealing it to be a, shocking Meowth and Jessie who are peeking from outside. Brock sends out Happiny, however Jessie and Meowth interrupts and tells Marilyn how disappointed they are with Shellder, then James starts to go into Kristy's bag and steal two Poké Balls contain Cherubi and Chingling, angering Marilyn who orders Shellder to use to catapult itself to Team Rocket. After being hit by Shellder and dropping the two balls, Marilyn orders Shellder to use causing Team Rocket to be frozen rock solid, Happiny uses  to send Team Rocket Blasting off.

At the end of the day, Dawn receives the package from her mother. Inside is some clothing and a letter from Johanna telling Dawn that as Snowpoint City is very cold she has sent some winter clothing for her, Ash and Brock. Ash and Brock receive very snazzy thick blue jackets while Dawn receives a gorgeous pink coat, new boots and a scarf. Marilyn remarks on how great they look, and now ready to brave the cold weather the gang prepare to head into Snowpoint City so Ash can battle for his seventh Sinnoh Gym Badge...