The English dub title is a reference to the phrase "from sea to shining sea".
Ash's Electrium Z transforms into a Pikashunium Z yet again, but permanently this time.
This is the first time in the anime where a battle has taken more than three episodes to complete. This is also the first time in the anime where two Z-Moves have been used by a single Trainer in a single battle. While this is not possible in the core series games, unless the player is assisted by the Rotom Pokédex in Ultra Sun and Ultra Moon, it should be noted that in this case using a second Z-Move is made possible due to intervention from the guardian deities.
The Manalo Conference ends.
Professor Kukui receives a Tapunium Z from Tapu Koko.