Ash and co. are at a Pokémon Center. Ash is charged up for his battle at the Battle Arena. May and Max wonder how the battle will be like. Brock tells Ash that this battle won't be easy. Scott appears at the scene. He sets down his cup on the table. He asks Ash if he's ready for his battle. Ash says he's ready and that he will win.

Many people are training at an academy. They are moving their arms forward and backward. Team Rocket is also participating in the training session. They are worn out from the hard exercise. A training instructor tells Team Rocket to continue their exercise. The leader tells them to say, "Oish." Team Rocket slowly says "Oish." Next everyone has to balance tea cups on their bodies for thirty minutes. Team Rocket is moaning because they are tired. The leader tells them to stop complaining. Eventually Team Rocket collapses. The instructor tells the leader that a challenger is waiting to battle her. The leader, who's name is Greta, knows about this. She tells herself that she won't lose.

Scott tells Ash that Greta is the Battle Frontier brain and that she is really tough to beat. Max asks Scott the Pokémon uses for battle. Scott tells him that she uses her favorites - Medicham and Hariyama. She uses Fighting type Pokémon. Scott decides to lead Ash and his friends to the Battle Arena. On their way out, Ash stops and thinks for a bit. Something comes up in his mind, and he heads back inside the Pokémon Center.

When Ash finally comes out, everyone is lead to the front of the Battle Arena. Ash shouts out to the people inside, but nobody answers. Finally, Scott shouts out something different and the doors open. Greta appears and introduces herself. Scott introduces Ash to Greta. Both trainers are determined to win. Greta calls out "Spin the wheel!" A big wheel comes out from the ground. She explains to Ash that spinning and landing on a 1 means they will have a 1-on-1 battle, 2 means 2-on-2 battle, and 3 means 3-on-3 battle. Ash pulls on the lever. The wheel begins to spin. It lands on a 2 meaning that they will have a 2-on-2 battle.

Team Rocket is watching Ash and his friends. Unfortunately, they were assigned to clean the floors. James notices how cute his Mime Jr is. Mime Jr lends James a hand by cleaning the floors with him. Jessie and Meowth want to capture Pikachu, but for now all they can do is wait.

The battle between Ash and Greta is about to begin. Greta's students are watching the battle. The double battle begins. Greta sends out Medicham and Hariyama. Ash sends out Grovyle and Snorlax. Everyone wonders why Ash chose Snorlax since it's a normal type. Greta starts off with Hariyama, and Ash chooses Grovyle. Grovyle starts off with Quick Attack. Hariyama dodges it and uses Arm Thrust. Dodging the attack, Grovyle counters with Bullet Seed. Hariyama blocks the attack with its arm. Greta tells Hariyama to use Arm Thrust, and Ash tells Grovyle to use Bullet Seed. Grovyle quickly jumps up and fires the attack. Unfortunately for Grovyle, Hariyama quickly dodges the attack. Then Hariyama leaps up and grabs Grovyle. It slams Grovyle to the ground. Another Arm Thrust weakens Grovyle even more. Grovyle manages to recover from the attack. Scott wonders how Ash will beat Hariyama. Ash figures out that they have to use speed in order to win. Grovyle speeds up to Hariyama with Quick Attack. When Grovyle is close enough, it hits Hariyama with a Leaf Blade. This throws Hariyama to the ground, but Hariyama recovers. Grovyle uses Leaf Blade again, but Hariyama counters Grovyle's attack with Focus Punch. This attack scores a direct hit knocking Grovyle out.

Ash's next Pokémon is Snorlax. Team Rocket is watching from the sidelines. They are waiting for the right moment to grab Pikachu. Hariyama starts the battle off with an Arm Thrust. Snorlax protects itself from the attack with a Protect. Snorlax can't withstand the attacks anymore, and it slides backwards. Greta is impressed at Ash's Snorlax. However, she tells Hariyama to use Arm Thrust again. Snorlax dodges the attack and hits Hariyama with a Headbutt. Hariyama finishes off with a Focus Punch. Snorlax uses a Protect to try and block the attack, but the Focus Punch is way too powerful for Snorlax. Ash calls out to Snorlax to get up. Greta tells Hariyama to use Focus Punch one last time. Just in time Snorlax dodges the attack. Hariyama damages its hand from the ground. Then Snorlax uses Ice Punch and freezes Hariyama in a block of ice. Since Hariyama can't battle anymore, Snorlax is declared the winner of the battle.

Medicham is sent into battle next. Jessie and James want to grab Pikachu now, but Meowth insists that they watch the battle first. Medicham begins the battle with a Focus Punch. Even Snorlax's Protect couldn't withstand the attack. Medicham uses Hi Jump Kick next to knock Snorlax to the ground. Snorlax manages to recover from the attack. Medicham uses Focus Punch again and Snorlax fires a Hyper Beam. Medicham quickly jumps up, dodges Snorlax's attack, and strikes Snorlax down with Focus Punch. Snorlax lands right where Team Rocket is at. Ash and co. notice Team Rocket right away. Team Rocket stands up and they say their motto. Then Team Rocket leaps up to grab Pikachu. Just before Team Rocket can reach Pikachu, Pikachu blasts them away with a Thunderbolt.

The battle starts again. Medicham charges towards Snorlax. Snorlax and Medicham both use their Ice Punch attacks, however Snorlax is the one that gets frozen. Ash tells Snorlax to use Rest. Scott notices that Ash is taking a risky move. He says that Snorlax might be able to heal, but if Medicham successfully attacks Snorlax while it is still sleeping, then Ash will lose the battle. Medicham jumps on the block of ice and begins punching it with a series of Ice Punches. The ice begins to break. Soon Snorlax's head is vulnerable of an attack. Finally, with a Hi Jump Kick, Medicham manages to break through all the ice. A few seconds later, Snorlax wakes up from its nap. Medicham uses Hi Jump Kick again, but Snorlax dodges the attack just in time. Greta is impressed by Ash's strong battling skills. Ash tells her that he is just getting warmed up. He has Snorlax fire another Hyper Beam. Medicham dodges the attack again and uses Focus Punch. The attack hits Snorlax weakining it. Ash tells Snorlax to use another Hyper Beam, but it can't because it is worn out. This gives Medicham the chance it needs to knock Snorlax out. Medicham hits Snorlax with a series of Focus Punches. Snorlax begins to charge up for another Hyper Beam. Greta orders Medicham to use one last final Focus Punch. Before the attack can hit, Snorlax fires the Hyper Beam at the ground. It flies into the air, and then it uses Body Slam. Snorlax falls onto Medicham at full power. When Snorlax lifts its body from the ground, Medicham is knocked out. Snorlax wins the battle.

Greta congratulates Ash for his victory. She hands Ash the Guts Symbol. Brock, May, and Max congratulate Ash for winning his second Battle Frontier symbol. Scott tells Ash that he can win his next symbol at the Battle Dome. Greta tells Ash to keep on winning his battles. Ash promises to do so. Then Ash and his friends head their way to the Battle Dome.