Timeline of events in Pokémon the Series: Sun & Moon

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In Pokémon the Series: Sun & Moon, Ash Ketchum travels to the tropical Alola region with his mother Delia and his buddy Pikachu. Enrolling in the Pokémon School, he befriends his new classmates Lana, Lillie, Mallow, Sophocles, and Kiawe. Gifted a Z-Ring by the guardian deity Tapu Koko, Ash undertakes the island challenge to master Alola's powerful Z-Moves. The Alola region ends up becoming a second home for Ash as he and his classmates face challenges and threats together, such as the mysterious interdimensional Ultra Beasts, the troublesome thugs of Team Skull, and the newly established Alola Pokémon League, where the title of Alola's first Champion is up for grabs.

Timeline

These events are listed in chronological order as opposed to solely release order.

Alola

Episode Details
Alola to New Adventure!
The Guardian's Challenge!
Loading the Dex!
First Catch in Alola, Ketchum-Style!
Yo, Ho, Ho! Go, Popplio!
That's Why the Litten is a Scamp!‬
Lillie's Egg-xhilarating Challenge!
  • Samson Oak gives Ash and his classmates an Egg, which Lillie agrees to take care of.
  • Ash and Mallow meet Hobbes, the butler for Lillie and her family, for the first time.
  • Ash's Rowlet is revealed to know Tackle and Peck.
  • Lillie's phobia of Pokémon is revealed to be the result of a traumatic experience involving her mother that she doesn't remember.
  • Lillie overcomes her phobia of Pokémon a little bit, being able to touch the Egg entrusted to her.
To Top a Totem!
Trial and Tribulation!
Young Kiawe Had a Farm!
The Sun, the Scare, the Secret Lair!
Racing to a Big Event!
Getting to Know You!
Rocking Clawmark Hill!
They Might Not Be Giants!
Crystal-Clear Sleuthing!
  • Rotom updates itself with a video camera function.
A Seasoned Search!
A Guardian Rematch!
Partner Promises!
One Journey Ends, Another Begins...
A Shivering Shovel Search!
Getting the Band Back Together!
Alolan Open House!
A Team-on-Team Tussle!
So Long, Sophocles!
A Glaring Rivalry!
The Ol' Raise and Switch!
The Island Whisperer!
Treasure Hunt, Akala Style!
Big Sky, Small Fry!
A Crowning Moment of Truth!
Currying Favor and Flavor!
Trials and Determinations!
Rising from the Ruins!
Mimikyu Unmasked!
Balloons, Brionne, and Belligerence!
Mounting an Electrifying Charge!
Alola, Kanto!
When Regions Collide!
A Dream Encounter!
Now You See Them, Now You Don't!
Deceiving Appearances!
A Masked Warning!
Night of a Thousand Poses!
Mission: Total Recall!
Faba's Revenge!
Family Determination!
Revealing the Stuff of Legend!
Rescuing the Unwilling!
10,000,000 Reasons to Fight!
The Professors' New Adventure!
The Dex Can't Help It!
Fighting Back the Tears!
Tasting the Bitter with the Sweet!
  • Lana and Mallow recall how they first met each other.
Getting a Jump on the Competition!
A Mission of Ultra Urgency!
Acting True to Form!
Pushing the Fiery Envelope!
Turning Heads and Training Hard!
Smashing with Sketch!
Love at First Twirl!
Rise and Shine, Starship!
  • Ash and his classmates go on their second Ultra Guardians mission.
  • The Ultra Guardians try and fail to capture a Celesteela, due to it being rooted down at the time.
  • The Ultra Guardians help free the Celesteela from being trapped underground, allowing it to fly back to space.
The Young Flame Strikes Back!
Sours for the Sweet!
Why Not Give Me a Z-Ring Sometime?
Tough Guy Trials!
Some Kind of Laziness!
A Battle Hand-Off!
Guiding an Awakening!
Twirling with a Bang!
Showering the World with Love!
Not Caving Under Pressure!
A Young Royal Flame Ignites!
All They Want to Do is Dance Dance!
The Shape of Love to Come!
The Long Vault Home!
Filling the Light with Darkness!
Full Moon and Many Arms!
  • The Ultra Guardians follow Lunala and Necrozma to Melemele Island to protect the former from the latter.
  • Necrozma fuses with Lunala.
  • Team Rocket's Matori Matrix attempts to capture Necrozma, but fails.
  • Nebby appears through an Ultra Wormhole and helps Lunala separate from Necrozma.
  • Nebby uses Sunsteel Strike for the first time and is revealed to have learned Flash Cannon.
  • The Matori Matrix attempts to capture Nebby and Lunala, but are stopped by Ash and Gladion.
  • Necrozma fuses with Nebby and escapes through an Ultra Wormhole, stopping its absorption of Alola's Ultra Aura, resulting in the recovery of the energy and motivation of the region's adults.
  • Lunala is brought to the Ultra Guardians base to recover.
  • The Aether Foundation, considering Necrozma an Ultra Beast, gives it the codename "UB Black".
  • Faba informs the Aether Foundation and the Ultra Guardians about the Team Rocket group that is trying to capture Nebby and Lunala.
  • Using the Z-Power of Ash, Kiawe, Lana, and Gladion's Z-Rings, Lunala is able to restore itself.
The Prism Between Light and Darkness!
Securing the Future!
A Haunted House for Everyone!
Sparking Confusion!
Don't Ignore the Small Stufful!
No Stone Unturned!
Bright Lights, Big Changes!
We Know Where You're Going, Eevee!
Battling the Beast Within!
Parallel Friendships!
Alola, Alola!
Heart of Fire! Heart of Stone!
That's Some Spicy Island Research!
Showdown on Poni Island!
  • Hapu is revealed to be planning on becoming Poni Island's next island kahuna.
  • Lillie and Ash meet Gladion again.
  • Gladion reveals that he is planning to take on the Poni Island grand trial by battling Tapu Fini.
  • Gladion also reveals that he wishes for Tapu Fini to let him meet his and Lillie's father, who is believed to be dead.
  • Lillie challenges Gladion to a battle, which he accepts, but Ash accidentally interrupts it before it can begin.
  • Gladion is revealed to have obtained a Dragonium Z.
  • Ash battles Gladion and loses.
Evolving Research!
Run, Heroes, Run!
Memories in the Mist!
A Grand Debut!
Keeping Your Eyes on the Ball!
Show Me the Metal!
Got Meltan?
Beauty is Only Crystal Deep!
The Dealer of Destruction!
The Secret Princess!
  • The Aether Foundation begins to search for Mohn.
  • Lillie finds a Z-Ring that used to belong to her father and decides to use it until he's found.
  • Lillie discovers an inactive Magearna at her house, bought for her by her father, and sets out to restore it.
  • Lillie and Snowy try to perform Subzero Slammer for the first time, but fail.
Drawn with the Wind!
Aiming for the Top Floor!
A High-Speed Awakening!
The One That Didn't Get Away!
A Recipe for Success!
Spying for the Big Guy!
A Fiery Training Camp Trick!
Living on the Cutting Edge!
A Timeless Encounter!
Chasing Memories, Creating Dreams!
League Offenders and Defenders!
Battle Royal 151!
Battling Besties!
The Battlefield of Truth and Love!
Imitation Is the Sincerest Form of Strategy!
Battling on the Wing!
The Road to The Semifinals!
The Final Four!
Getting Down to The Ire!
The Wisdom Not to Run!
Final Rivals!
Enter the Champion!
Z-Move Showdown!
Exhibition Unmasked!
A Full Battle Bounty!
Fiery Surprises!
From Z to Shining Z!
Dreams of the Sun and Moon!
Thank You, Alola! The Journey Continues!

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