Background
Show cover for Pokémon

The Best Episodes of Pokémon Season 20

Genres:AnimationAction & AdventureSci-Fi & Fantasy

Every episode of Pokémon Season 20 ranked from best to worst. Discover the Best Episodes of Pokémon Season 20!

Join Ash accompanied by his partner Pikachu, as he travels through many regions, meets new friends and faces new challenges on his quest to become...
Episodes
43
Avg. Rating
7.3
S1
S2
S3
S4
E1
E2
E3

Filter By Season (25)

  • When Regions Collide!
    8.7/10(225)
    Loading...

    #1 - When Regions Collide!

    Season 20 Episode 43

    Aired 9/21/2017

    The Cerulean Gym is the setting for old and new friends, battling old and new skills!

    Director: N/A

    Writer: N/A

    Comments

    0
  • One Journey Ends, Another Begins...
    8.6/10(245)
    Loading...

    #2 - One Journey Ends, Another Begins...

    Season 20 Episode 21

    Aired 4/6/2017

    Ash and Pikachu run into Litten again, but this time something's very wrong with its friend the old Stoutland. Ash carries Stoutland to the Pokémon Center, where Ash, Pikachu, and Rotom-Dex learn that Stoutland is dying. Litten and Stoutland escape from the Pokémon Center and return to the riverside, where Stoutland passes away in the night. After realizing what has happened, Litten is heart-broken and refuses to be comforted by anyone. After Litten finally comes to terms with the loss of its friend, Ash asks Litten to join him. Litten decides to test him by battling against Pikachu. When the battle ends in a draw, Litten chooses to become one of Ash's Pokémon. Team Rocket's Meowth, who for reasons of his own has been secretly watching everything, seems pleased by the outcome.

    Director: N/A

    Writer: N/A

    Comments

    0
  • Alola, Kanto!
    8.6/10(175)
    Loading...

    #3 - Alola, Kanto!

    Season 20 Episode 42

    Aired 9/14/2017

    A celebratory Pokémon School class trip turns out to be a reunion no one will ever forget!

    Director: N/A

    Writer: N/A

    Comments

    0
  • Rising from the Ruins!
    7.9/10(113)
    Loading...

    #4 - Rising from the Ruins!

    Season 20 Episode 37

    Aired 8/10/2017

    As if Ash's victory at his grand trial wasn't monumental enough, an unexpected transformation makes a memorable field trip even more momentous!

    Director: N/A

    Writer: N/A

    Comments

    0
  • Trials and Determinations!
    7.8/10(99)
    Loading...

    #5 - Trials and Determinations!

    Season 20 Episode 36

    Aired 8/3/2017

    The time for Ash's grand trial with Olivia is finally here, and it's no ordinary battle!

    Director: N/A

    Writer: N/A

    Comments

    0
  • A Glaring Rivalry!
    7.6/10(119)
    Loading...

    #6 - A Glaring Rivalry!

    Season 20 Episode 27

    Aired 5/18/2017

    A trainer named Gladion, dressed in black, battling with a powerful fiery-eyed Lycanroc and wearing a Z-ring, has appeared on Melemele Island. After seeing them in action, Ash naturally wants to battle Gladion; however, he's totally shocked when Lillie appears and calls Gladion her brother. Gladion seems cold towards Lillie and at first refuses Ash's challenge, but then learns that Ash got his Z-ring from Tapu Koko and had actually battled the Island Guardian. That night, Gladion's Umbreon delivers a note to Ash agreeing to battle. It's Ash's Rockruff versus Gladion's Lycanroc! However, Team Rocket, who saw Gladion defeat the Team Skull grunts earlier, can't resist getting involved. Ash and Gladion must work together to rescue Pikachu and Lycanroc.

    Director: N/A

    Writer: N/A

    Comments

    0
    Trending NowTRENDING NOW

    The 20 BEST Episodes of Pokémon

    READ
  • Trial and Tribulation!
    7.5/10(116)
    Loading...

    #7 - Trial and Tribulation!

    Season 20 Episode 10

    Aired 1/12/2017

    The Melemele Island grand trial is imminent, and Ash must square off against the power and wisdom of Kahuna Hala!

    Director: N/A

    Writer: N/A

    Comments

    0
  • Getting to Know You!
    7.5/10(103)
    Loading...

    #8 - Getting to Know You!

    Season 20 Episode 14

    Aired 2/9/2017

    Lillie's egg hatches into an Alolan Vulpix, which she had named "Snowy" in the previous episode, and their principal's egg into a normal Vulpix. The fire-type Vulpix starts playing with Pikachu, Togedemaru, Popplio and the others, while Snowy (an ice-type) ignores the others. Finally, it decides to accept Lillie as its trainer and gets caught in Lillie's Pokéball by itself. Lillie decides to spend some time alone with her newfound partner and takes a walk with Snowy. Team Rocket starts following them and soon corners Lillie and Snowy. Though Lillie tries to put up a fight when Snowy uses Powder Snow, Team Rocket dominates her in battle. She and Snowy are saved by Ash and Mallow. Lillie finally learns to touch a Pokémon for the first time, even though this is exclusively for Snowy at this moment.

    Director: N/A

    Writer: N/A

    Comments

    0
  • Rocking Clawmark Hill!
    7.5/10(119)
    Loading...

    #9 - Rocking Clawmark Hill!

    Season 20 Episode 15

    Aired 2/23/2017

    Ash and Professor Kukui notice that the Rockruff that lives with Professor Kukui is disappearing at night and returning the next morning badly injured. Following it, they find out that Rockruff is participating in a secret Pokémon training ground. Ash decides to help Rockruff train. Rockruff learns to use Rock Throw. After Rockruff defeats a Magmar that previously defeated it, Professor Kukui decides to leave Rockruff in Ash's care and Ash catches Rockruff.

    Director: N/A

    Writer: N/A

    Comments

    0
  • A Guardian Rematch!
    7.5/10(102)
    Loading...

    #10 - A Guardian Rematch!

    Season 20 Episode 19

    Aired 3/23/2017

    Ash needs to begin training for a possible rematch against Tapu Koko. Sophocles helps out with scientific methods that yields surprising results. Naturally, this arouses Tapu Koko's interest. Tapu Koko challenges Ash and Pikachu with the whole Pokémon school looking on. Are Ash and Pikachu strong enough with the Electrium Z-Crystal power to withstand the Island Guardian's powerful attacks?

    Director: N/A

    Writer: N/A

    Comments

    0
  • Lulled to La-La Land!
    7.5/10(93)
    Loading...

    #11 - Lulled to La-La Land!

    Season 20 Episode 29

    Aired 6/8/2017

    Students and Pokémon take a camping trip together. After they wake up feeling mysteriously drained, they realize there's something in the forest.

    Director: N/A

    Writer: N/A

    Comments

    0
  • The Ol' Raise and Switch!
    7.5/10(92)
    Loading...

    #12 - The Ol' Raise and Switch!

    Season 20 Episode 30

    Aired 6/15/2017

    Ash and his friends switch Pokémon for two days for a class assignment. Ash takes Snowy to his house while Pikachu goes home with Lillie.

    Director: N/A

    Writer: N/A

    Comments

    0
  • First Catch in Alola, Ketchum-Style!
    7.4/10(135)
    Loading...

    #13 - First Catch in Alola, Ketchum-Style!

    Season 20 Episode 4

    Aired 11/24/2016

    Ash is after his first Pokémon in the Alola region, and the adventure that ensues is typical Ash!

    Director: N/A

    Writer: N/A

    Comments

    0
  • Partner Promises!
    7.4/10(114)
    Loading...

    #14 - Partner Promises!

    Season 20 Episode 20

    Aired 4/6/2017

    On the advice of a local shopkeeper, Ash and Pikachi (partly to escape being dragged along on the girls' shopping spree) kayak to nearby Treasure Island, where there are lots of wild Pokémon. After watching a group of Crabrawler, following an Cutiefly to a meadow full of friendly bug Pokémon and having fun with a group of Alolan Exeggutor, they are overrun by a school of Wimpod who try to steal their snacks. Preparing to return home, they find a Wimpod trapped inside a blocked cave. With the help of one of the Exeggutor from earlier, they manage to reach and free Wimpod, who thanks Ash before returning to its school. Ash and Pikachu see another Island Guardian, Tapu Lele, who heals Ash's bruised hands.

    Director: N/A

    Writer: N/A

    Comments

    0
  • The Island Whisperer!
    7.4/10(90)
    Loading...

    #15 - The Island Whisperer!

    Season 20 Episode 31

    Aired 6/22/2017

    The Akala Island Kahuna, Olivia, comes to the Pokémon School. Ash and the rest of the class head to Akala for a practical class under her supervision.

    Director: N/A

    Writer: N/A

    Comments

    0
  • Mimikyu Unmasked!
    7.4/10(92)
    Loading...

    #16 - Mimikyu Unmasked!

    Season 20 Episode 38

    Aired 8/17/2017

    When Mimikyu faces a fashion problem, Jessie sees a bonding opportunity!

    Director: N/A

    Writer: N/A

    Comments

    0
  • That's Why the Litten is a Scamp!
    7.3/10(123)
    Loading...

    #17 - That's Why the Litten is a Scamp!

    Season 20 Episode 7

    Aired 12/15/2016

    A feisty Litten is determined to steal food from others, and Ash and Pikachu are determined to find out why!

    Director: N/A

    Writer: N/A

    Comments

    0
  • They Might Not Be Giants!
    7.3/10(99)
    Loading...

    #18 - They Might Not Be Giants!

    Season 20 Episode 16

    Aired 3/2/2017

    While training on a beach, Lana's Popplio and Ash's Rowlet are caught inside one of Popplio's balloons, which is blown away by a strong wind. Rowlet bursts the balloon open, and they both crash into Team Rocket's secret base. Meowth and Mareanie chase after them, but they are rescued by Litten. While Ash, Lana, and Mallow search for the missing pair, Litten takes them to where it has been staying with the old Stoutland. Stoutland asks Litten to help them find their trainers; however, Team Rocket is also hunting them. Who will find Litten and the lost Pokémon pair first?

    Director: N/A

    Writer: N/A

    Comments

    0
  • Alolan Open House!
    7.3/10(97)
    Loading...

    #19 - Alolan Open House!

    Season 20 Episode 24

    Aired 4/27/2017

    When the Pokémon School announces a special Visitors Day, Ash's mother and Mr. Mime come for a visit. Delia charms everyone, including all of Ash's Alolan Pokémon. Meanwhile, Ash faces one of his toughest challenges ever... giving a report in front of his classmates, the school visitors and now his own mother! When the Team Skull grunts crash the festivities on Tauros and start causing mayhem, Delia insists on standing up to them. Can Ash and his Pokémon save the day?

    Director: N/A

    Writer: N/A

    Comments

    0
  • A Crowning Moment of Truth!
    7.3/10(96)
    Loading...

    #20 - A Crowning Moment of Truth!

    Season 20 Episode 34

    Aired 7/20/2017

    The Wela Fire Festival is just starting to heat up, but someone seems determined to put it out!

    Director: N/A

    Writer: N/A

    Comments

    0
  • The Guardian's Challenge!
    7.2/10(146)
    Loading...

    #21 - The Guardian's Challenge!

    Season 20 Episode 2

    Aired 11/17/2016

    Ash and Pikachu are adjusting to life in the Alola region-and it's about to give them a powerful push in a new direction!

    Director: N/A

    Writer: N/A

    Comments

    0
  • Lillie's Egg-xhilarating Challenge!
    7.2/10(107)
    Loading...

    #22 - Lillie's Egg-xhilarating Challenge!

    Season 20 Episode 8

    Aired 12/22/2016

    Lillie has a Pokémon Egg to care for until it hatches, but will fear get in her way?

    Director: N/A

    Writer: N/A

    Comments

    0
  • To Top a Totem!
    7.2/10(116)
    Loading...

    #23 - To Top a Totem!

    Season 20 Episode 9

    Aired 1/5/2017

    Ash wants a new Z-Crystal, but he must face some formidable tasks first!

    Director: N/A

    Writer: N/A

    Comments

    0
  • Young Kiawe Had a Farm!
    7.2/10(104)
    Loading...

    #24 - Young Kiawe Had a Farm!

    Season 20 Episode 11

    Aired 1/19/2017

    Ash has time off from school for training, but a fellow student's activities away from school have our hero wanting to find out all about it!

    Director: N/A

    Writer: N/A

    Comments

    0
  • The Sun, the Scare, the Secret Lair!
    7.2/10(104)
    Loading...

    #25 - The Sun, the Scare, the Secret Lair!

    Season 20 Episode 12

    Aired 1/26/2017

    Professor Kukui takes Ash and the other students for a special lesson at the beach, where they come across a bunch of Mareanie. One Mareanie causes trouble for Ash and his Pokémon when it decides to help Team Rocket (and especially James), who are under pressure from their boss to catch new Pokémon in the Alola region.

    Director: N/A

    Writer: N/A

    Comments

    0

Season 20 Ratings Summary

"When Regions Collide!" is the best rated episode of "Pokémon" season 20. It scored 8.7/10 based on 225 votes. Directed by N/A and written by N/A, it aired on 9/21/2017. This episode is rated 0.1 points higher than the second-best, "One Journey Ends, Another Begins...".