Pokémon S25E45 - Heroes Unite!

Satoshi and Go return to Kanto and reveal their intentions on starting new adventures without each other. However, Go is unwilling to tell Satoshi his plan, as he doesn't want to betray his friendship with him. When Satoshi publicly announces his decision to continue his journey alone, Go becomes upset due to the feeling of betrayal. The dispute between the two friends is paused when Lugia suddenly appears, prompting Satoshi and Go to begin a raid battle with it.