Pokémon: Season 21

2017 · 49 episodes · ★ 6.5

Sun & Moon: Ultra Adventures

What Season 21 of Pokémon

Ash dreams that he makes a promise to the legendary Pokémon Solgaleo and Lunala, but when he wakes up, he can't remember what he promised them. A strange Pokémon called Cosmog, which looks like a little star cloud, helps jog his memory, and the hero commits to taking care of it. Together with his new classmates at the Pokémon School, Ash and Pikachu discover the Aether Foundation, which is dedicated to protecting Pokémon, though it doesn't seem as harmless as it appears. Our heroes must join forces to protect people and their Pokémon from mysterious powers they've never seen before.

49episodes

Oct 5, 2017aired

Oct 14, 2018final episode

18.8 hrtotal runtime

Season 21 Episodes

21x01 A Dream Encounter!
Oct 5, 2017 · 23 min · ★ 6.4
A vivid dream has set our hero on a mission to find out its true meaning!
21x02 Now You See Them, Now You Don't!
Oct 12, 2017 · 23 min · ★ 6.8
As our heroes get to know Nebby better, Nebby gets to know them better, too!
21x03 Deceiving Appearances!
Oct 19, 2017 · 23 min · ★ 7.3
While our heroes explore one part of Aether Paradise, Team Rocket is busy exploring another!
21x04 A Masked Warning!
Oct 26, 2017 · 23 min · ★ 7.3
Ash and his friends are off on another big adventure, thanks to Nebby's amazing powers!
21x05 Night of a Thousand Poses!
Nov 2, 2017 · 23 min · ★ 7.2
A sleepover at Professor Kukui's house sets the stage for fun, friendship, and unexpected adventure!
Script: Yuka Miyata
21x06 Mission: Total Recall!
Nov 9, 2017 · 23 min
Lillie is on a mission to put her past behind her once and for all!
21x07 Faba's Revenge!
Nov 16, 2017 · 23 min
Although Faba's original sinister plot has been foiled, he isn't about to give up on his dream!
21x08 Family Determination!
Nov 23, 2017 · 23 min
Lusamine has been captured by an Ultra Beast and swept away through an Ultra Wormhole, but everyone is determined to get her back safely!
21x09 Revealing the Stuff of Legend!
Nov 30, 2017 · 23 min
Our heroes are determined to rescue Lusamine, and help is coming from unexpected and astounding sources!
21x10 Rescuing the Unwilling!
Dec 7, 2017 · 23 min · ★ 7.2
Our heroes are determined to rescue Lusamine from inside the Ultra Wormhole, but Lusamine has other ideas!
21x11 10,000,000 Reasons to Fight!
Dec 14, 2017 · 23 min · ★ 7.6
Our heroes are doing everything they can to save Lusamine from an Ultra Beast...while Lusamine is doing everything she can to stop them!
21x12 The Professors' New Adventure!
Dec 21, 2017 · 23 min · ★ 7.4
Professors Kukui and Burnet are getting married, and our heroes know just what to do to help!
21x13 Let Sleeping Pokémon Lie!
Dec 28, 2017 · 23 min · ★ 7.2
Our heroes are wondering about Komala's sleep patterns when they're interrupted by a familiar visitor!
21x14 The Dex Can't Help It!
Jan 11, 2018 · 23 min
Rotom Dex embarks on an electrifying journey-whether it wants to or not!
21x15 Fighting Back the Tears!
Jan 18, 2018 · 23 min
n accidental encounter with the past puts the present and future in jeopardy!
21x16 Tasting the Bitter with the Sweet!
Jan 25, 2018 · 23 min
A distant memory shared by Mallow and Lana is rekindled in a bittersweet way!
Script: Yuka Miyata
21x17 Getting a Jump on the Competition!
Feb 1, 2018 · 23 min
A trip to Mount Lanakila gives our heroes the opportunity to learn and grow in ways they hadn't imagined!
21x18 A Mission of Ultra Urgency!
Feb 8, 2018 · 23 min
The appearance of another Ultra Beast compels our heroes to take on new roles-and take charge!
21x19 Acting True to Form!
Feb 15, 2018 · 23 min
An unexpected appearance by a cunning visitor is turning Team Rocket's world on its head!
21x20 Pushing the Fiery Envelope!
Feb 22, 2018 · 23 min
The appearance of a popular Alolan battling duo brings out some surprising fiery determination!
21x21 Satoshi and Nagetukesaru! Touchdown of Friendship!!
Mar 1, 2018 · 23 min
Ash takes a trip to the marketplace and meets the local group of Passimians, who have a rivalry with the Akala Island Passimians.
21x22 Turning Heads and Training Hard!
Mar 8, 2018 · 23 min
A visit by a surprise Pokémon School graduate dazzles our heroes with the stuff of legends!
Script: Yuka Miyata
21x23 Smashing with Sketch!
Mar 15, 2018 · 23 min
Pokémon School graduate Ilima teaches our heroes about an activity that's near and dear to his heart!
21x24 Love at First Twirl!
Mar 22, 2018 · 23 min
Our heroes are about to welcome an unexpected addition into the family-unexpected in so many delightful ways!
21x25 Real Life...Inquire Within!
Apr 5, 2018 · 23 min
Nurse Joy is feeling a bit under the weather today, but we know just the heroes to help her out!
21x26 Rise and Shine, Starship!
Apr 12, 2018 · 23 min
A potential disaster threatens the future of the Alola region, but the Ultra Guardians are ready, willing, and able to deal with it!
21x27 The Young Flame Strikes Back!
Apr 19, 2018 · 23 min
The survival of Kiawe's family farm may be at stake, but our heroes are up to the challenge!
21x28 Dewpider Ascending!
Apr 26, 2018 · 23 min
There are lots of interesting Pokémon for our heroes to discover in Alola, and the one they meet today is no exception!
21x29 Sours for the Sweet!
Apr 26, 2018 · 23 min
There's a big baking competition coming up in Alola, and a surprising participant is joining in on the fun!
21x30 Why Not Give Me a Z-Ring Sometime?
May 3, 2018 · 23 min · ★ 7.6
Team Rocket appears to be stuck in a rut, but solutions can come from high places!
Script: Yuka Miyata
21x31 Tough Guy Trials!
May 10, 2018 · 23 min
A series of smaller trials line the pathway to Ash's goal-a grand trial!
21x32 Some Kind of Laziness!
May 17, 2018 · 23 min
Ash is determined to train with Tapu Bulu, and Tapu Bulu is determined to be as unpredictable as ever!
21x33 A Battle Hand-Off!
May 24, 2018 · 23 min
Ash and Pikachu are all set for their pre-trial rematch against the island kahuna, but Nanu has a different idea!
21x34 Guiding an Awakening!
May 31, 2018 · 23 min
Ash's grand trial on Ula'ula Island is in full swing, and the kahuna has lots of twists and turns in store for the battle!
21x35 Twirling with a Bang!
Jun 7, 2018 · 23 min
The Ultra Guardians are being called upon again, but this time, they're on double duty!
21x36 Showering the World with Love!
Jun 14, 2018 · 23 min
Our heroes are stargazing, little suspecting the spectacle that awaits them in the night sky!
21x37 Not Caving Under Pressure!
Jun 28, 2018 · 23 min
A surprising show of determination leads to a happy outcome for many-in many different ways!
Script: Yuka Miyata
21x38 A Young Royal Flame Ignites!
Jul 5, 2018 · 23 min
The Battle Royal Dome is ablaze with battling excitement, but this time the Masked Royal has a little help!
21x39 All They Want to Do Is Dance, Dance!
Jul 19, 2018 · 23 min
A rousing Pokémon School class project has everyone out of their chairs, and out on the floor!
21x40 Dummy, You Shrunk the Kids!
Jul 26, 2018 · 23 min
When Faba appoints himself professor for the day at the Pokémon School, an unexpected event shows that big adventures can come in small packages!
21x41 The Shape of Love to Come!
Aug 2, 2018 · 23 min
Our heroes have met an astoundingly talented artist, but there's much more to her and her partner than meets the eye!
21x42 The Long Vault Home!
Aug 9, 2018 · 23 min
Another Ultra Beast has made its way to Alola, and the Ultra Guardians have an ultra-gigantic mission on their hands!
21x43 I Choose Paradise!
Aug 16, 2018 · 23 min
Everybody's looking forward to a relaxing day at a health spa, although a few secretly have different plans!
Script: Yuka Miyata
21x44 Filling the Light with Darkness!
Aug 23, 2018 · 23 min
Things are not right in Alola, and our heroes are poised to find out why!
21x45 Full Moon and Many Arms!
Aug 30, 2018 · 23 min
A mysterious creature has emerged from an Ultra Wormhole and now appears to be threatening Alola, but our heroes are ready to do anything they can to help!
21x46 The Prism Between Light and Darkness!
Sep 6, 2018 · 23 min
Our heroes are on a mission to rescue Solgaleo from UB Black's clutches, and what a mission it is turning out to be!
21x47 Securing the Future!
Sep 13, 2018 · 23 min
The Ultra Guardians are on a mission to save Poipole's world, and everyone and everything depends on them!
21x48 A Plethora of Pikachu!
Oct 7, 2018 · 23 min
The rumors are true, and our heroes can't pika-believe what they find!
21x49 Turning the Other Mask! Season Finale
Oct 14, 2018 · 23 min
It's time for the Masked Royal to face his old rival in the ring, but first, there are a few obstacles to be dealt with!