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BW086 : Piplup, Pansage, and a Meeting of the Times!
Best Wishes series
BW088 : The Mystery of the Missing Cubchoo!
Expedition to Onix Island!
BW087   EP744
Survival on the Island of Iwark!
First broadcast
Japan July 5, 2012
United States November 10, 2012
English themes
Opening Rival Destinies
Ending {{{en_ed}}}
Japanese themes
Opening やじるしになって!
Ending みてみて☆こっちっち
Animation Team Kato
Screenplay 米村正二 Shōji Yonemura
Storyboard 古賀一臣 Kazuomi Koga
Assistant director 古賀一臣 Kazuomi Koga
Animation director 案浦達哉 Tatsuya Annoura
No additional credits are available at this time.

Expedition to Onix Island! (Japanese: イワークの島でサバイバル! Survival on the Island of Iwark!) is the 87th episode of the Best Wishes series, and the 744th episode of the Pokémon anime. It first aired in Japan on July 5, 2012 and in the United States on November 10, 2012.

201 Spoiler warning: this article may contain major plot or ending details. 201


At Cynthia’s vacation home in Undella Town, Ash, Iris, and Cilan are doing some special training before the Pokémon World Tournament Junior Cup, but Dawn has decided she needs a break. She tells the others about a nearby deserted island where a special Onix lives, and suggests that they go check it out! Cynthia’s butler Jervis takes them to the island by boat, and drops them off with a promise to be back before dinner—and an ominous warning to be very careful on the island.

They soon discover why: a huge cave on the island is home to a large group of Onix, and the enormous Pokémon aren’t too happy about having visitors! They attack, and our heroes flee, getting separated in the process. Iris and Dawn emerge in a wooded area, and Piplup finds itself in a clearing with Ash and Cilan. The guys run into more angry Onix while trying to escape, but Meloetta steps in to drive them away—first trying to soothe them with its beautiful song, and when that doesn’t work, the Pokémon changes its Forme and leaps into battle!

Meanwhile, Dawn and Iris are experiencing their own bad luck with the Pokémon they meet in the woods. Iris is thrilled to encounter a Magnemite, since she’s never seen one before, but gets zapped when she tries to pet it. And Dawn has a similar run-in with an adorable but poisonous Foongus! The girls eventually find their way into a canyon and reunite with Ash, Cilan, and Piplup—along with the group of Onix chasing them!

Oshawott and Piplup team up to battle the Onix, since their Water-type attacks are super effective—and during the battle, Oshawott learns how to use the powerful move Hydro Pump! But even that isn’t enough against so many Onix, and Ash calls on Meloetta to try singing again. It doesn’t seem to be working, and the Onix are closing in—but then, on the cliff above, an Onix of a different color rears up and roars at the others. It’s the special Shiny Onix our heroes have been looking for! It also appears to be the boss of the island, as the other Onix back off and return to their cave.

When Jervis comes to pick them up, Ash and the others tell him what happened. Jervis suggests that the Shiny Onix helped them escape because it was touched by Meloetta’s singing. As they head back to Undella Town, a beautiful rainbow inspires Meloetta to sing again, and everyone—Iris, Dawn, Cilan, Ash, and even Jervis—comments that Meloetta’s song reminds them of home. It seems the special Pokémon’s voice possesses a mysterious power...

...a power that Team Rocket is looking to take advantage of, as Jessie, James, and Meowth work on the next step in their villainous plan to capture Meloetta for the Boss!


090Shellder.png This plot summary is incomplete.
Please feel free to edit this plot summary to add missing sections and complete it.

At Cynthia's house, Ash, Iris, and Cilan are training for the Junior Cup. Dawn decides she needs a break from the training, and suggests they visit a nearby island. They arrive on the beach where Jervis is telling them there's living a special giant Onix on this island. Meanwhile, Cilan is preparing food for them. Oshawott was chasing a Krabby, while Piplup was laughing at him. All ready, enter the huge cave inhabited by the wild Onix. The enraged Onix attack them, and they flee. Iris, Axew and Dawn hide in a wooden area, and Ash, Cilan, Pansage, Oshawott and Piplup hide in a forest clearing, therefore the two are separated. Meloetta attempts to calm the Onix down with its songs, but fails. Meloetta then transforms into Pirouette Forme. It uses Close Combat, after which they flee. Meanwhile, Iris and Dawn are lost and they don't know where to go. Still in search of the special Onix they are cornered by group of Onix about to attack them. Meloetta again sings a song but the Onix are persistent. Suddenly, a huge roar of an Onix is heard. A coiled-up Shiny Onix reveals itself, causing all other Onix to flee. The shiny Onix flees too, and the group find a clearing and a way out of the island. Jervis reminds them of being careful at such places. They all return back to Cynthia's villa.

Major events

For a list of all major events in the anime, please see the timeline of events.


Pokémon debuts



Dare da?


Who's That Pokémon?

Who's That Pokémon?: Onix (US and international) Meloetta's Pirouette Forme (Japan)


Pikachu surfing


Krabby with Kingler's head and claws colorization
  • Throughout the episode, Krabby's head and claws are colored the same color like its evolution, Kingler.
  • When Iris calls out to Dawn after the vine snaps, her mouth doesn't move.

Dub edits

In other languages

BW086 : Piplup, Pansage, and a Meeting of the Times!
Best Wishes series
BW088 : The Mystery of the Missing Cubchoo!
Project Anime logo.png This episode article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.