At the school , the students are finishing up their class.Wood heart jumps onto the wall of the stadium, shouting Alex's name. The students flee as Woodheart chases after Alex, who trips over her feet and falls to the ground.

LadyNoir staff stops Woodheart from touching Alex and gives Alex time to flee. LadyNoir goads Wood Heart into attacking her.

In her , Hawk Moth states that everything is going according to plan.

LadyNoir hits Stoneheart with her staff, and Woodheart grows in size. LadyNoir avoids Wood heart next blows as Mister bug watches in horror from the top of the stadium's wall. 

Woodheart wrenches a soccer goal from the ground and throws it at LadyNoir. It bounces, arcing toward Nino, who is hiding and filming. LadyNoir acts fast, throwing her staff and extending it. The goal post bounces off it, missing Nino. 

This distraction gives Woodheart the opportunity to catch LadyNoir.

Nino spots Mister Bug, asking him what he is waiting for. Mister winces and dives into the stadium.He hooks her yo-yo around Wood Heart's legs and slides to a stop in front of her. Unbalanced, Woodheart releases LadyNoir. 

Mister Bug runs to LadyNoir side as she prepares to attack Wood Heart again. Mister Bug stops her and reminds her of Wood Heart's ability to grow stronger with each hit.

LadyNoir suggests that they use their powers, and she summons his , testing it on one of the goal posts, which rusts and dissolves. Excited, LadyNoir runs out to Woodhearth, placing his hand on Woodheart foot.

 When nothing happens, Woodheart kicks her back to Mister Bug, who berates her, telling her he has only five minutes left before she transforms back into his civilian self.

Mister Bug summons his Lucky Charm , and gets a swimsuit , and explains the akuma to LadyNoir, who points out that they don't know where the akuma is. Mister Bug realizes that Wood Heart keeps her right fist closed, and suggests the akuma is hidden in her fist. 

He ties the open ends of the wetsuit together and ties a water hose into the neck of the suit. Asking LadyNoir to trust her, he wraps her yo-yo around her legs and throws him at Woodheart, who catches LadyNoir in her left fist. 

Mister Bug taunts Wood Heart and throws himself at him, wetsuit in hand. When Woodheart catches her, she drops the crumpled note, which is now a purple rock. Mister Bug then yells at Nino to turn on the hose, which allows the wetsuit to fill up with water and forces Wood heart hand open. 

Mister Bug runs over to the purple rock and stomps on it, freeing the akuma, which flutters off as Mullen turns back to normal and drops LadyNoir to the ground.