Pokemon the Series Season 18 Episode 13 An Oasis of Hope!

In the season 18 episode 13 of Pokemon the Series, titled "An Oasis of Hope!", Ash and his friends continue their journey through the Kalos region and arrive at an oasis known as the Gloriose Oasis. Upon arrival, they are greeted by a group of Pokemon, who seem to be gathering around a particular spot.

The group soon discovers that the water source for the oasis has been contaminated, and the Pokemon are stuck without clean water to drink. In an effort to help, Ash and his friends offer to investigate the source of the contamination and fix the problem.

As they investigate, the group encounters a group of Trainers who are also trying to help by capturing the Pokemon and taking them to a safe location. However, Ash and his friends realize that the Pokemon are far happier in their natural environment and are determined to find a solution that allows them to stay in the oasis.

Throughout the episode, Ash and his friends work together with the Pokemon to try and find a solution to the water contamination. As they search, they discover that a nearby factory has been dumping waste into the river that feeds the oasis.

Determined to put a stop to the contamination, the group confronts the factory owner and demands that they stop dumping their waste into the river. Despite initial reluctance, the factory owner eventually agrees to stop contaminating the water source and the group is able to restore the oasis to its natural state.

As the episode draws to a close, Ash and his friends are thanked by the Pokemon for their help and continue on their journey through the Kalos region with a renewed sense of purpose. "An Oasis of Hope!" highlights the importance of preserving nature and working together to protect our environment.