The episode begins with Ash Ketchum and his friends, including Pikachu, Litten, and the rest of the group, enjoying a sunny day at the Alola region. They are excited about the upcoming Pokémon School activities and are seen discussing their plans for the day. Ash expresses his eagerness to learn more about Pokémon and improve his skills, while his friends share their own aspirations.

As they walk through the lush landscape, they come across a mysterious, shimmering portal that appears in the sky. The portal captures their attention, and they gather around it, intrigued by its unusual appearance. Suddenly, a figure emerges from the portal, revealing itself to be a Pokémon named Nebby, also known as Cosmog. The group is astonished by Nebby's ethereal presence and its ability to float gently in the air.

Nebby seems to be in distress, and Ash instinctively reaches out to help it. However, as he approaches, Nebby suddenly gets frightened and retreats back into the portal. The group is left confused and concerned about Nebby's well-being. They discuss what they just witnessed, and Ash feels a strong desire to help Nebby, believing it might be in danger.

Determined to find Nebby, Ash and his friends decide to investigate the portal further. They speculate about what it could be and how they might be able to reach Nebby. As they ponder their next steps, they notice that the portal is fluctuating, suggesting that it might open again. The group prepares themselves, hoping to catch Nebby when it reappears.

While they wait, Ash reflects on his past experiences with Pokémon and how he has always been drawn to helping those in need. His friends encourage him, sharing their own thoughts about the importance of friendship and support in the Pokémon world. This moment strengthens their bond and reinforces their commitment to assist Nebby.

The portal begins to glow once more, and the group readies themselves for action. As it opens, Nebby emerges again, but this time it appears even more frightened. Ash reaches out again, trying to calm Nebby down. He speaks softly, assuring it that they mean no harm. However, Nebby is still hesitant and starts to retreat back toward the portal.

Just then, a sudden disturbance occurs as a group of Team Skull members appears, intent on capturing Nebby for their own nefarious purposes. The Team Skull grunts approach menacingly, causing Ash and his friends to spring into action. They stand protectively in front of Nebby, ready to defend it from the attackers.

A battle ensues between Ash's Pokémon and Team Skull. Ash commands Pikachu to use Thunderbolt, which strikes one of the grunts, causing them to stumble back. Litten joins the fray, using its Fire-type moves to fend off the other grunts. The fight is intense, with Ash and his friends working together seamlessly to protect Nebby.

As the battle rages on, Team Skull realizes they are outmatched and decides to retreat, vowing to return for Nebby another day. With the threat gone, Ash and his friends turn their attention back to Nebby, who is visibly shaken but grateful for their help. Ash reassures Nebby that it is safe now and that they will do everything they can to protect it.

The episode concludes with Ash and his friends deciding to take Nebby back to the Pokémon School, where they can keep it safe and learn more about its mysterious origins. They walk together, united in their mission to help Nebby, as the sun sets over the Alola region, symbolizing the beginning of a new adventure.

In the ending of "A Dream Encounter!", Ash and his friends are left in awe after their encounter with the mysterious Pokémon, Nebby, also known as Cosmog. The episode concludes with Ash feeling a renewed sense of adventure and determination, ready to face new challenges alongside his friends in the Alola region.

As the episode unfolds towards its conclusion, the scene transitions to Ash, Pikachu, and their friends standing on a cliff overlooking the vast ocean. The sun begins to set, casting a warm golden hue over the landscape. Ash reflects on the day's events, feeling a mix of excitement and wonder about the adventures that lie ahead. His friends, including Lillie, Mallow, and Kiawe, gather around him, sharing in the moment of camaraderie and anticipation.

Lillie, still processing her encounter with Nebby, expresses her desire to learn more about the mysterious Pokémon and its connection to her past. Her eyes shine with determination, revealing her internal struggle and growth as she embraces her role as a Pokémon Trainer. Mallow and Kiawe encourage her, emphasizing the importance of friendship and teamwork in their journey.

As the sun dips below the horizon, Ash raises his fist in the air, declaring that they will face whatever challenges come their way together. The group cheers, their spirits lifted by the promise of new adventures. The camera pans out, capturing the picturesque scene of the friends united against the backdrop of the setting sun, symbolizing hope and the endless possibilities that await them in the Alola region.

The episode concludes with a sense of unity and purpose among the characters, setting the stage for their future endeavors and the bonds they will strengthen as they continue their journey together. Each character, having faced their own challenges and fears, emerges with a renewed sense of identity and determination, ready to embrace the adventures that lie ahead.

In the episode "A Dream Encounter!" from Pokémon's season 21, titled "Sun & Moon: Ultra Adventures," there is indeed a post-credit scene.

After the main events of the episode conclude, the scene shifts to a tranquil setting where Ash and his friends are enjoying a peaceful day at the Pokémon School. The atmosphere is light and cheerful, filled with the sounds of laughter and Pokémon playing. Suddenly, the scene transitions to a mysterious location, where a figure is seen observing Ash and his friends from a distance.

This figure is revealed to be a new character, who is shrouded in mystery and intrigue. The character appears to be watching Ash with a keen interest, hinting at future encounters and challenges that may arise in the series. The scene leaves viewers with a sense of anticipation and curiosity about the character's intentions and how they will impact Ash's journey.

The post-credit scene effectively sets the stage for upcoming adventures, emphasizing themes of exploration and the unknown, while also deepening the narrative by introducing new elements that will unfold in the episodes to come.

In 'A Dream Encounter!', Ash encounters a mysterious Pokémon known as Nebby, or Cosmog, which is a small, cloud-like creature that has the ability to teleport.

In this episode, Ash's bond with his classmates, particularly with Lillie, deepens as they work together to understand Nebby's powers and protect it from Team Skull.

Team Skull appears in 'A Dream Encounter!' as antagonists who attempt to capture Nebby, showcasing their typical mischievous and chaotic behavior, which adds tension to the plot.

Lillie exhibits a mix of concern and determination regarding Nebby, as she feels a strong connection to the Pokémon and is motivated to protect it from Team Skull.

Ash is initially surprised and fascinated by Nebby's abilities, especially when it teleports, showcasing his adventurous spirit and eagerness to learn more about this unique Pokémon.

The episode "A Dream Encounter!" from Pokémon's season 21, "Sun & Moon: Ultra Adventures," is generally considered family-friendly. However, there are a few elements that might be slightly concerning for very young children or sensitive viewers:

1. Mild Frightening Imagery: There are scenes involving Pokémon battles and some intense moments that could be visually startling, particularly for younger viewers who may be sensitive to action or conflict.

2. Emotional Moments: Characters experience feelings of disappointment and frustration, which could resonate with children who may find it difficult to process such emotions.

3. Chase Scenes: There are sequences where characters are chased by Pokémon, which could create a sense of tension or anxiety.

Overall, while the episode contains typical adventure and action elements, it maintains a light-hearted tone suitable for its target audience.