Professor Oak has finished his research on the mysterious new Pokémon Ash reported and names the new Pokémon Meltan, a Steel-type. One of the Meltan has grown attached to Ash's Rowlet and stows away in Ash's backpack with Rowlet to join them all at the Pokémon School, but after an incident with a Murkrow, it loses its Hex-Nut. Rowlet tries to replace it but nothing he tries seems to work, so he and Meltan head out to find its Hex-Nut. However, they run into Team Rocket, who have found Meltan's Hex-Nut and are still after all the Meltan. Will Rowlet be able to protect Meltan?

The episode was rated 7.53 from 15 votes.

While battling Tapu Koko, Ash and Pikachu suddenly find themselves in an unfamiliar place inhabited by a menacing Ultra Beast known as Guzzlord! Guzzlord’s power is fearsome, but a mysterious man named Dia—accompanied by the Mythical Pokémon Zeraora—comes to our heroes’ aid. Ash wants to help Dia reclaim his home from Guzzlord’s destructive wrath, but after Dia defeats Ash in a test battle, our hero relents. He and Pikachu must return to their own home, but how? Dia offers them shelter for the night, but on the way, they discover an abandoned Pokémon School! What could all of this mean?

The episode was rated 7.54 from 13 votes.

Now that the Alola Pokémon League’s qualifying round is over, it’s time for the real matches to begin! Ash faces off against the scheming Faba, and crowd favorite Ilima takes on Team Skull’s Boss, the foul-tempered Guzma. But perhaps the most exciting match of the day occurs when Lana and Primarina battle against Mallow and Tsareena. The two may be best friends outside the arena, but that won’t stop them from giving their all during this battle!

The episode was rated 7.57 from 14 votes.

Just as Ash is crowned Champion of the Alola Pokémon League, an Ultra Wormhole opens above the stadium, and an angry Guzzlord appears! Ash had battled it previously in a parallel world, so he tells Alola’s island kahunas about the Ultra Beast’s weak spot. But before they know it, two more Guzzlord appear! The kahunas and Pokémon School class leap into Z-Move action to defeat the first two, while Ash, Pikachu, and the Masked Royal reunite with Naganadel—formerly Poipole—and use Gigavolt Havoc to send the third one packing. The resulting explosion blows off the Masked Royal’s mask, revealing his true identity: Professor Kukui!

The episode was rated 7.59 from 17 votes.

We’ve reached the Alola Pokémon League semifinals! Ash is lined up to challenge Team Skull’s Guzma, but first, Kiawe will take on Gladion. Their battle allows each competitor to use two Pokémon, and given the skills possessed by both Trainers, this is going to be an exciting match. Gladion has chosen Lycanroc and Silvally to go up against Kiawe’s Alolan Marowak and Turtonator—four powerful Pokémon that have been trained to win. Lycanroc faces Marowak first, but there’s no way we’re going to spoil the outcome. We will say this, though: it’s an extremely heated battle with a cliffhanger that will leave you eagerly anticipating the next episode!

The episode was rated 7.64 from 14 votes.

The Alola Pokémon League quarterfinals continue at a lightning pace, and Ash and Rowlet are in the midst of their battle with Hau and Decidueye. The attacks fly furiously—just like the competitors themselves—until it appears that Rowlet is unable to battle. But Hala notices that Rowlet hasn’t lost yet…it’s actually just sleeping! The battle restarts, and after mastering a new move, Rowlet ends up victorious! Then, Kiawe and Charizard face off against Sophocles and Vikavolt, and the latter two successfully pull off a Z-Move—will Charizard be able to escape the devastating attack?

The episode was rated 7.67 from 15 votes.

Professor Kukui has finally realized his dream of establishing the Alola Pokémon League, and he’s excited to welcome everyone to the dedication of the brand-new Manalo Stadium. Much to the excitement of our heroes, he announces that the Champion of the Alola Pokémon League will be granted an exhibition battle with the Masked Royal. Ash and friends are fired up and eager to participate—and Lillie even pulls off her first Z-Move! Meanwhile, Gladion sets out on a search…and eventually reunites with his father’s long-lost Zoroark! After learning that its partner is still alive, Zoroark agrees to join Gladion on his quest to find Professor Mohn!

The episode was rated 7.79 from 14 votes.

Rowlet is determined to battle Decidueye in Ash’s Alola Pokémon League quarterfinals match against Hau, but first it needs some additional training. And just in the nick of time, Toucannon and its flock arrive to teach Rowlet a new move! Meanwhile, at Manalo Stadium, Gladion and his Lycanroc defeat James and Mareanie…and then Ash is up next! Rowlet enters the battlefield dressed in a Decidueye costume, which ends up becoming a decoy against the real Decidueye’s Sinister Arrow Raid attack! With Rowlet still standing, how will the rest of the match play out?

The episode was rated 7.86 from 14 votes.

Ash and Guzma’s battle continues in the second half of the Alola Pokémon League semifinals! After the surprising defeat of Guzma’s Scizor, his Golisopod is left to take on Ash’s Torracat. Unfortunately, the exhausted Torracat is quickly defeated, leaving it up to Pikachu to face the powerful Golisopod. During the fierce battle, new details come to light, revealing why Guzma is so determined to bring down Professor Kukui and the Alola Pokémon League. Can Ash and Pikachu overcome this determined adversary?

The episode was rated 7.93 from 14 votes.

The Alola Pokémon League’s exhibition match continues with a dizzying array of Pokémon! Braviary manages to defeat Ash’s Lycanroc, and then Rowlet takes down Braviary with a powerful Brave Bird attack. Professor Kukui then calls on Venusaur, who traps Rowlet in its flower! Thanks to Feather Dance, Rowlet escapes unscathed—but then falls to Venusaur’s Sludge Bomb attack. Next up is Torracat’s fiery return to defeat Venusaur, followed by Pikachu versus Empoleon. After a dizzying Whirlpool, Ash switches in Melmetal, who takes down Empoleon but can’t withstand Incineroar’s flames. Each Trainer has three Pokémon still standing as Professor Kukui sends out Lucario, Ash responds with Naganadel, and the battle continues!

The episode was rated 7.94 from 17 votes.

As the Alola Pokémon League races toward the finish line, Gladion and Zoroark unleash the Z-Move Never-Ending Nightmare against Pikachu. But Pikachu stops in its tracks to meet the threat head-on with Breakneck Blitz: a strategy that’s pure Ash! The clash of Z-Moves leaves both Pokémon unable to battle, and Ash and Gladion both respond by sending out their Lycanroc for the final stretch of the match. The two Lycanroc battle to new levels of intensity, ending with a Counter-versus-Counter showdown—and a momentous, hard-earned win for Ash! At long last, our hero is crowned the Champion of the first-ever Alola Pokémon League!

The episode was rated 8.00 from 16 votes.

Get your tissues ready, because this episode of Pokémon the Series: Sun & Moon—Ultra Legends is a real tearjerker. On Poni Island, Hapu tells Ash and friends about a strange mist created by Tapu Fini. When people and Pokémon venture into the fog, they can be temporarily reunited with loved ones who have passed on. Ash, Mallow, and Hapu herself all encounter the mist, and when Lillie and Gladion emerge from it, a shocking revelation sets the stage for an exciting mystery!

The episode was rated 8.00 from 18 votes.

The Alola Pokémon League is underway, and it promises to be full of action, drama, and surprises! The qualifying round is a Battle Royal competition among 151 different Trainers, and only the top 16 will make it to the next stage! A free-for-all ensues, with our heroes battling against and alongside friendly rivals like Pikala and Hiroki as well as returning foes like Viren’s cronies and Plumeria from Team Skull. When the dizzying action finally winds down, the entire Pokémon School class, Hau, Gladion, and even a disguised Team Rocket are among those left standing! Now, the question is: who will make it all the way to the top?

The episode was rated 8.07 from 15 votes.

As the Alola Pokémon League’s exhibition match nears its conclusion, Tapu Koko appears—it wants to team up with Professor Kukui and battle Ash! Our hero responds by sending out Naganadel, and the clash of Island Guardian and Ultra Beast powers is an amazing sight. But Tapu Koko manages to overpower Naganadel, so Ash turns to Pikachu, his last Pokémon standing! Tapu Koko raises the stakes as it and Professor Kukui unleash a legendary Z-Move reserved for Island Guardians, but Ash and Pikachu rise to the challenge with their own Z-Move: 10,000,000 Volt Thunderbolt! Once the dust clears, Tapu Koko falls, and Ash and Pikachu are victorious!

The episode was rated 8.63 from 19 votes.

As their vacation approaches, our heroes’ plans move closer to reality! Kiawe has decided to assist Olivia with her kahuna duties, while Lana, Mallow, and Sophocles continue to work toward their own goals. Now that Magearna is awake, Lillie and her family are setting out to find Mohn, and Ash is embarking on a new adventure of his own—he wants to see new places and meet new Pokémon! The Pokémon School class, Professor Kukui, and Professor Burnet are sad to see him leave Alola, but they wish him all the best for the future. And with Team Rocket also departing Alola, just what might that future hold?

The episode was rated 8.74 from 23 votes.