Ash and co. are continuing their journey towards Solaceon Town. Dawn points to a bridge that would make a great shortcut for them, but Brock states that the bridge is still under construction. Brock notices a few people are near the bridge. One of them happens to be a girl that Brock immediately falls in love with. The two men have cornered the girl at the edge of the bridge. Brock, who thinks that the girl is in danger, runs towards her. He almost falls over, but Croagunk saves him. Brock tells the girl that he will rescue her from danger, but the girl tells him that he is making a mistake. She explains that she was having a discussion with the mayor and head engineer. The head engineer wants the girl to have the bridge finished in a few days so that it can be opened to public. Then the two men leave.
The girl's name is Isis. Ash and co. introduce themselves to her. Brock offers to be her assistant to finish the job. Isis explains that the head engineer has put her in charge of the stone cutting, but work has stopped. Ash wonders why her crew isn't working. Iris tries to explain, but Brock stops her. He sees two Machoke and two Machamp lying around. Assuming that they are Iris's crew, Brock gives them all Pokémon food. The Machoke and Machamp wake up from their naps and gobble down Brock's food. Brock tells Iris that she does not have to worry anymore because his special food will give them more energy to work. Isis tells Brock that the Machoke and Machamp are not the real problem. She says that the Pokémon that does the stone work is the problem because it won't work. Brock has her lead the way to it.
Team Rocket has been watching Ash and co. from the bushes. They realize that a group of Pokémon that can build bridges are strong enough to build a secret base. They decide to capture the Pokémon and then give them to the boss. Iris has lead Ash and co. to the place where the stones are cut. She points to a ledge. Up there is a Pokémon who is sleeping. Ash looks up the Pokémon in his Pokédex and discovers that it is a Bibarel. Bibarel is the stone cutter. Brock thinks that whipping up another batch of Pokémon food will get it to work again. So, Brock prepares the food and gives it to Bibarel. Bibarel eats the food, but then it goes back to sleep. This surprises Brock.
Ash asks Isis if Bibarel is really the Pokémon who can cut stone well. Isis states that she was the one who trained Bibarel to cut stone back at the academy. Then a teacher came along and wanted to make Bibarel an expert. Several days later, Isis saw that Bibarel had become a stone-cutting expert. However, ever since Bibarel's teacher left, Bibarel had lost all hope in cutting stone. Brock realizes that Bibarel just misses its teacher. Brock offers to help cut the stone, but Isis says that is impossible to do without Bibarel. Brock doesn't care though. He tells Ash to send out Turtwig, Chimchar, and Buizel. Ash decides to help, so he sends out the Pokémon. Then Brock sends out Sudowoodo, and Piplup decides to help too. Bibarel suddenly wakes up from its nap to watch the Pokémon. Chimchar uses Flamethrower on a stone to heat it up. Then Buizel cools it down with Water Gun. Afterwards, Turtwig and Sudowoodo use their Razor Leaf attacks (Sudowoodo used Mimic) to cut the stones into equal-size blocks. Isis is impressed with the work. She measures the blocks and then finally states that they are no good. She explains that each block has to be the right size in order to work on the bridge. Ash realizes that the job may be impossible to do, but Brock doesn't want to accept defeat.
Suddenly, Bibarel jumps onto the blocks. Brock wonders if Bibarel wants to work now, but Isis thinks Bibarel is angry. Bibarel glares at Ash and co. with its dark eyes. Suddenly, Team Rocket appears in their balloon, and they say their motto. Team Rocket has captured the Machoke and Machamp in a cage. Ash and co. demand for the Pokémon back. Team Rocket states that they need the Pokémon to build them a base. Then Team Rocket uses a robot arm to capture Bibarel. To free Bibarel from Team Rocket, Ash orders Chimchar and Buizel to attack the robot arm. Then Turtwig and Sudowoodo attack as well, but the attacks have no effect. Bibarel is thrown into the cage with the Machoke and Machamp. Bibarel isn't about to give up. It gnaws its way out of the cage by breaking the bars. Bibarel and the fighting Pokémon all jump out of the cage to safety. Pikachu then uses a Thunderbolt on Team Rocket, and Team Rocket goes blasting off again.
Isis congratulates Bibarel for saving all the fighting Pokémon. Brock asks Bibarel if it will help cut the stone, but Bibarel refuses. Suddenly, the head engineer arrives. He claims that Isis can't be trusted to get the job done, so he sends out Rhydon. Isis tells the engineer that Rhydon will never be able to cut the stone properly for the bridge, but the engineer ignores her. Rhydon begins drilling its way through the stone. Bibarel gets angry from this, and it tackles Rhydon. Rhydon uses its tail to throw Bibarel to the ground, but Bibarel recovers and bites Rhydon's foot. Rhydon collapses to the ground. The engineer isn't too happy about that, so he sends out an Aggron, a Magmar, and a Metang. The three Pokémon corner Bibarel. Aggron uses Iron Head, but Bibarel dodges the attack. Metang tries to hit Bibarel with a Metal Claw, but Bibarel avoids it too. Magmar uses Flamethrower, and the attack unfortunately hits Bibarel and weakens it. However, Bibarel is still able to fight.
To even up the sides, Ash sends Pikachu into battle. Pikachu uses Iron Tail on Rhydon. Then Ash and co. have the rest of their Pokémon attack. The engineer's Pokémon have all been defeated from the attacks. The engineer is mad now. He heads into his construction vehicle and charges towards Ash and co. Suddenly, a boulder hits the vehicle, and it tips over. The boulder came from Bibarel's teacher. The teacher and his Machamp approaches Isis and Bibarel. Bibarel is glad to see its teacher. The teacher states that the bridge that the engineer was going to build would have collapsed from its own weight if it succeeded. The engineer knew about the error in the blueprints, but he didn't say anything about it because his reputation was on the line. Isis and the teacher are furious at the engineer. They scare him away.
With the engineer gone and Bibarel's teacher back, everyone is ready to work on the bridge that the teacher came up with. After a few long hours, the bridge is finally built. Ash and co. are proud of their hard work. The teacher congratulates Isis for her hard work. Isis doesn't think she will make a good Pokémon breeder, but the teacher assures her that as long as she works together with her Pokémon, she will become an excellent breeder. The teacher then thanks Ash and co. for their help. As a token of his gratitude, he gives them a scarf just like the one Bibarel was wearing. Ash and co. accept the reward, and then they continue their way towards Solaceon Town.
