While Ash's battle with Leon is underway, Goh, along with Horace and Gary, are on their way to Faraway Island earlier than expected due to the end of the wet season. Their goal? Find Mew, no matter what dangers they may face. As the group makes their way deeper into the island and up Table Mountain, they'll find that things aren't what they seem as danger lurks around every corner, and the journey to Mew is fraught with more perils than they can imagine.
This episode contains the following tropes:
- Brought Down to Badass: With the group's technology disabled, it falls to Danika and Quillon to carry the group with their Azumarill and Weavile, and both of them are able to keep the other chasers safe from harm.
- Call-Back: Mew's home inside Table Mountain is conspicuously like the Tree of Beginning from Pokémon: Lucario and the Mystery of Mew, complete with two legendaries from Generation III and a bunch of Fossil Pokémon hanging around the area. Fortunately for the group, the tree doesn't mistake them for threats and try to eat them like it did with Ash, May, Brock, and Max.
- Cliffhanger: The two groups are separated from one another, and both have fallen under attack from two Legendary Pokémon who aren't keen on them trespassing.
- Climbing the Cliffs of Insanity: The Chasers are forced to scale up a very steep Table Mountain in order to try and find Mew, since their airship can't land as a result of severe wind conditions. Gary nearly falls to his death when a Skarmory cuts the rope in retaliation for territorial trespassing, forcing Goh, Horace, and Danika to scale to a nearby cliffside to try and get around another way.
- Continuity Nod:
- The episode picks up right after Goh had left Ash, with Danika revealing she called the group out early because the wet season stopped sooner than expected.
- Goh designed his sensor device based on his encounter with Mewtwo, mentioning he met it before.
- Horace reveals he participated in the other Chaser mission that the group issued a while back (Goh and Gary picked the other one to catch the Regis), showing he caught a Virizion.
- A Day in the Limelight: With the last batch of episodes focusing exclusively on Ash and Pikachu's battles in the Masters Eight, the episode focuses on Goh's efforts to find Mew, marking the second episode during Ash's tenure as the lead where neither he nor his partner appear.
- Didn't Think This Through: Grookey tries to jump in to protect its owner from Solrock and Lunatone, but it forgets that it's a small, inexperienced battler with not a lot of powerful moves at its disposal. It takes Danika's Azumarill using Hydro Pump to save its hide.
- EMP: Somehow, the island is generating one at the base of Table Mountain, rendering all forms of technology inert, including Goh's detection device, and even the group's Poké Balls. The group suspects Mew is the culprit behind it.
- Foreshadowing: When Grookey fails to stop the wild Solrock and Lunatone by itself, it mopingly stares at its stick. It turns out that there's a hidden power within that it has yet to tap...
- Hidden Depths: Danika is an expert on molecular biology and geology, while Horace studies environments that Pokémon live in that are uninhabitable to humans.
- Mythology Gag: Goh's detection device is shaped like a Game Boy Advance. Rather appropriately, it has a green cartridge like Emerald—the only game that Faraway Island could be accessed in.
- Offscreen Moment of Awesome: Horace was able to catch a Virizion during the previous Chaser mission.
- Wham Shot: The separated groups wind up encountering two Legendary Pokémon that block their path to Mew: Groudon and Kyogre.
