Ash and co. arrive at a city. May smells the great scent of it since they have been in the woods for a very long time. May wants to do a lot of shopping. Ash wants to get a burger and Max wants to find some cool Pokémon. They split up in pairs to do their things.

A few construction workers are busy remodeling a mansion. One guy says that there is something wrong with the mansion since the five workers quit in the past week. Team Rocket are also working for the construction. James and Meowth begin to fight, but Jessie breaks up the fight. Jessie doesn't like working for construction, and she is hungry. Unfortunately, Team Rocket has no other choice but to work for money.

May stares at all the fancy clothes and accessories in the shops. Brock suggests that they get some supplies and medicine first, but May tells him that they can do that later. Ash and Max have just come out of a burger restaurant. Max now wants to look for Pokémon. He says that the best place to look for Pokémon is at an alley since they like to hide from the city. Ash and May see a Shroomish. Meanwhile, Brock has finished gathering the supplies they need for their Pokémon journey. May admires the fact that Brock is really organized.

Suddenly, May hears two people talking about a curse. May buts in their conversation. The woman tells May that there is a mansion called Green Lodge, and it is said to be cursed. So there are construction workers busy tearing the whole place including the forest down. The woman goes on by saying that some of the construction workers see fresh footprints in the mansion and sometimes they can't breathe. May seems to be interested in the mansion.

Meanwhile, Ash and Max are observing the Shroomish. Ash looks up Shroomish in his Pokédex. The Shroomish doesn't look too happy to see Ash and Max. Max wants to give Shroomish some Pokémon food. Ash agrees and gives Max some Pokémon food to give to Shroomish. Max takes the food from Ash and holds out his hand to Shroomish. Shroomish gets angry at Max and shoots out a Stun Spore. Ash and Max hurry on out of the alley.

Max takes Brock's hand so that they can visit the haunted mansion. Meanwhile, Ash puts the Pokémon food on a napkin and gives it to Shroomish. Shroomish growls at Ash. Ash promises Shroomish that it will like the food. Pikachu even takes a sample of it. Shroomish decides to eat the food. It seems that Shroomish loves Brock's Pokémon food. Max suddenly notices something strange. He says that Shroomish usually live in the forest. Ash has a theory that Shroomish might've gotten separated from its family. They decide to take Shroomish to the Pokémon Center. Before they do that, Max puts a handkerchief on Shroomish.

May and Brock confront the mansion. Brock looks nervous and scared, but May is confident. She wants to go inside the mansion. Ash and Max also face the mansion. Shroomish has a sad look on its face. Team Rocket sees Ash and Max face the mansion. Shroomish suddenly jumps out of Max's arms. Ash and Max go after it. Team Rocket wants to capture Pikachu. They think of a plan to capture it. The same Shroomish that Max had runs right past May and Brock. It jumps into the mansion. Ash and Max catch up with Brock and May. Another guy comes up to them and tells them to leave since they are destroying the whole mansion and forest. Max tells him that they saw a Shroomish, but the man doesn't believe Max since there hasn't been any Shroomish for a long time. Then the man tells them a story about how he used to love playing with the Shroomish when he was little. However more buildings were made and the forest started to be demolished. Since Ash and Max are positive that they saw a Shroomish, the man decides to check the inside of the building.

After a while, they find the Shroomish with the handkerchief. They get a closer look, and they see the Shroomish shivering. Two other Shroomish accompany the Shroomish with the handkerchief. They wonder why the Shroomish aren't in the forest. The man says that since the forest is being torn down all the Shroomish must've decided to live in the mansion. However since the mansion is going to be torn down, the Shroomish will have no place to live. The man sees a picture of him and his grandfather playing with the Shroomish.

Suddenly, Team Rocket makes their entrance by blowing a hole through the mansion wall. They say their motto. Jessie sends out Seviper, and James sends out Cacnea. Before they can battle a sound is heard. A whole herd of Shroomish comes down. It looks like all of the Shroomish have been living in the mansion. Team Rocket attacks the herd. The Shroomish begin to use Stun Spore. The attack paralyzes Team Rocket, but Ash and co. manages to escape the attack. They are all surprise at the amount of Shroomish living in the mansion. Max takes a look at Shroomish and announces that he thinks the Shroomish are in pain. He tells the man that the Shroomish want to live peacefully with him again. Team Rocket escapes from the mansion. They think of a plan to capture Pikachu and the Shroomish.

Ash and co. plea to the man to stop the construction of destroying the mansion. The man says that it is too late for the construction to stop. Suddenly, Team Rocket comes up to them in a robot vehicle. Brock says that Team Rocket is going to try to capture all of the Shroomish. Team Rocket begins to ram against the mansion wall. All the Shroomish come outside, and Team Rocket begins to capture them all. Pikachu uses Thunderbolt, but the attack has no effect on Team Rocket. The rest of the Shroomish use Stun Spore. Unfortunately, the Stun Spore begins to move closer to the city. Brock sends out Forretress. Forretress uses Rapid Spin to prevent the Stun Spore from moving into the city. The Stun Spore has no effect on Team Rocket, however since there is no air in their vehicle Meowth presses a button to let air inside. The air happens to be Stun Spore which affects Team Rocket greatly. The Shroomish also use Leech Seed to sap up Team Rocket's energy. May sends out Torchic. Torchic uses Ember which releases the Shroomish from the net. Lastly, Pikachu uses Thunder to blast Team Rocket off again.

Unfortunately, the mansion will have to be torn down, however the man has another idea. He decides to build another forest so that the Shroomish can be happy again. Ash and co. say goodbye to the man and all of the Shroomish.

English Official Summary

Ash, May, Brock and Max have arrived at a small city on their way to Rustboro City. Brock decides to stock up on supplies, while Max is eager to go hunting for city dwelling Pokémon. Max soon stumbles upon a very frightened Shroomish who is hiding in an alleyway. Ash, Max, Pikachu and their new Shroomish friend head off to find a Pokémon Center. On their way they pass by a deserted mansion that is being torn down. There, the gang learns that not long ago most of the city was forest and that many, many Shroomish lived in the area. They also learn that strange things are going on at the mansion, and many people believe that it's haunted. A little investigation reveals that the mansion is actually inhabited by all of the Shroomish who used to live in the forest. When the forest was destroyed, they had nowhere else to go. All of the strange noises and smells that the construction workers were hearing were actually the Shroomish! The grandson of the owner decides to tear down the mansion as planned, but to convert all of that land into a forest for the Shroomish.

French Official Summary

En chemin vers l’Arène de Mérouville, Sacha, Flora, Pierre et Max arrivent dans une petite ville. Pierre décide de faire quelques courses, tandis que Max a hâte d’observer les Pokémon qui se promènent dans les rues. Max rencontre bientôt un Balignon terrorisé qui se cache dans une petite ruelle, et nos héros emmènent leur nouvel ami dans un Centre Pokémon. En chemin, ils passent devant une demeure abandonnée, qu’on est en train de démolir. Nos héros apprennent alors qu’il n’y a pas si longtemps, la ville n’existait pas, il n’y avait que la forêt, et beaucoup de Balignon vivaient là. Ils apprennent également que d’étranges phénomènes se produisent dans cette demeure, et que beaucoup de gens pensent qu’elle est hantée. Quels sont les secrets que recèle la mystérieuse maison ? Et Max pourra-t-il aider Balignon à retrouver son foyer ?

German Official Summary

Ash, Maike, Rocko und Max sind auf dem Weg nach Metarost City in einem kleinen Ort angekommen. Rocko will die Vorräte auffüllen und Max sucht in der Stadt nach Pokémon.

Italian Official Summary

Ash, Vera, Brock e Max sono giunti in una piccola cittadina sulla strada per Ferrugipoli. Brock decide di fermarsi a comprare delle provviste, mentre Max non vede l'ora di cacciare i Pokémon presenti in città.

Portuguese Official Summary

Parando na Cidade de Rinshin, nossos heróis investigam o mistério de uma mansão assombrada!

Spanish Latin America Official Summary

Tras detenerse en Pueblo Rinshin, nuestros héroes investigan el misterio de una mansión embrujada.

Spanish Official Summary

Ash, Aura, Brock y Max han llegado a una pequeña ciudad mientras se dirigen al Gimnasio de Ciudad Férrica. Brock decide almacenar suministros, mientras que Max tiene ilusión por ir a capturar a los Pokémon que viven en la ciudad. Max se tropieza con un Shroomish muy asustado que se oculta en un callejón, así que nuestros héroes llevan a su nuevo amigo a un Centro Pokémon. En el camino, pasan delante de una mansión abandonada que están tirando abajo. Allí, los amigos oyen que hasta hace poco la ciudad era un bosque y que en la zona vivían muchos, muchos Shroomish. También oyen que en la mansión hay extraños sucesos y muchos creen que está encantada. ¿Qué secretos esconde la mansión? ¿Y podrá Max ayudar al Shroomish a encontrar el camino a casa?

English Great Britian Official Summary

Ash, May, Brock and Max have arrived at a small city on their way to Rustboro City. Brock decides to stock up on supplies, while Max is eager to go hunting for city dwelling Pokémon. Max soon stumbles upon a very frightened Shroomish who is hiding in an alleyway. Ash, Max, Pikachu and their new Shroomish friend head off to find a Pokémon Center. On their way they pass by a deserted mansion that is being torn down. There, the gang learns that not long ago most of the city was forest and that many, many Shroomish lived in the area. They also learn that strange things are going on at the mansion, and many people believe that it's haunted. A little investigation reveals that the mansion is actually inhabited by all of the Shroomish who used to live in the forest. When the forest was destroyed, they had nowhere else to go. All of the strange noises and smells that the construction workers were hearing were actually the Shroomish! The grandson of the owner decides to tear down the mansion as planned, but to convert all of that land into a forest for the Shroomish.

Russian Official Summary

Когда Эш и его друзья останавливаются в Ринши Тауне чтобы пополнить звои запасы, Мэй уговаривает Брока осмотреть вместе с ней заколдованный дом. А в это время Макс замечает Шрумиша, что очень странно, поскольку Шрумишы живут в лесах. Выясняется, что город построен на месте леса, где когда-то жили Шрумишы, а теперь он вытеснен городскими постройками. Однако теперь они собираются в старом доме, чем и объясняются странные вещи, которые замечают люди. Дом хотят снести, а Шрумиши  снова станут бездомными. Но после того, как покемоны останавливают Команду Р при помощи оглушающей споры, владелец дома решает снести дом, а на его месте разбить новый лес, гже могут поселиться Шрумиши.

Dutch Official Summary

Onze helden pauzeren in Rinshin Town en onderzoeken een mysterieus spookhuis!

Danish Official Summary

Vore helte gør ophold i Rinshin Town og udforsker et mystisk hjemsøgt hus!

Swedish Official Summary

Under ett stopp i Rinshin Town undersöker våra hjältar mysteriet med det hemsökta huset!