Ep 5. The Stun Spore Detour

In Pokemon season 3 episode 5, titled "The Stun Spore Detour," Ash and his friends find themselves in the middle of a dense forest on their way to the next gym battle. While trying to find their way out, they come across a group of trainers who are trying to capture a wild Vileplume. The trainers explain that they need the Vileplume's Stun Spore to make a medicine that will heal their sick Pokemon.

Ash and his friends offer to help the trainers capture the Vileplume, but soon realize that it won't be an easy task. The Vileplume is protected by a group of Beedrill that make it nearly impossible to get close. While trying to figure out a plan, they run into a local expert who tells them about a special berry that can counteract the effects of the Stun Spore.

The group decides to split up, with Ash and his Pikachu going to find the berry and the other trainers staying behind to try and capture the Vileplume. Along the way, Ash and Pikachu come across a group of wild Oddish who are also being affected by the Stun Spore, and decide to help them as well.

As they search for the special berry, Ash and Pikachu encounter a group of Team Rocket members who are also in the forest, looking to capture the Vileplume for their boss. Ash and Pikachu battle them, but are soon outnumbered and outmatched. Just when it seems like all is lost, the wild Oddish come to their rescue, using their abilities to create a smokescreen that allows Ash and Pikachu to escape.

Eventually, Ash and Pikachu are able to find the special berry, but when they return to the Vileplume, they discover that the other trainers have already captured it. However, they learn that the Vileplume's Stun Spore wasn't what they needed after all, as the medicine they were trying to make required a different ingredient.

Despite not being able to help the trainers with their original mission, Ash and his friends still feel like they accomplished something by helping the wild Oddish and learning more about the forest they were traveling through. They continue their journey, ready for whatever challenges come next.