Sapphire is training Torchic and Aron in Granite Cave, reflecting on her imminent gym battle against Brawly. She knows that Brawly is much stronger than her and that a battle tonight would result in her loss; however, in thinking that, some other idea occurs to her.Some time later, Sapphire rushes to Dewford Gym. There she engages in battle against Brawly's Machop with her newly-evolved Combusken, who quickly nearly knocks Machop out. Sapphire sends out her also newly-evolved Lairon, challenging Brawly to use his secret weapon of Ju against her. Brawly returns Machop before it can faint, sending out his Makuhita. Makuhita utilizes Ju to avoid Lairon's attacks, as well as nearly knock it out. Sapphire hurries to return Lairon, sending out Combusken again.
Makuhita's Thick Fat makes it resistant to Combusken's Flamethrower, so Combusken charges in to throw a couple of physical attacks. Despite its bulk, Makuhita easily avoids these attacks as well, until combining Combusken's momentum with a shove to send it into a wall without enough power to crack the wall.Sapphire compliments the effectiveness of Ju, making Brawly blush with pleasure. Sapphire then demonstrates her understanding of Ju by pulling a long vine from her fanny pack and throwing up to the ceiling; the power from her arm alone isn't nearly enough, so she starts to whirl it like a lasso, explaining that Ju is the buildup of power so that this time, when she hurls it at the ceiling, the vine reaches easily, wrapping around an overhead light.
Brawly praises her understanding of Ju and tells her that Makuhita's accumulated energy is for evolution; and at that moment, his Makuhita evolves into Hariyama as it lunges toward Combusken.