Pokémon: Diamond and Pearl · Galactic Battles arc
DP136 · Gateway to Ruin!
テンガン山の遺跡！ギンガ団の陰謀！！
Synopsis
What happens.
While they are still on their way to Dawn's next Pokémon Contest in Lilypad Town, Ash and his friends encounter a section of Mt. Coronet that is a muggy marshland. Soon, they come across a river with a strong current, as well as blue Shellos.
Synopsis adapted from Bulbapedia's DP136 entry, used under CC-BY-NC-SA 2.5.
Story arc · DP105-DP157
Galactic Battles.
Team Galactic captures the Lake Guardians (Uxie, Mesprit, Azelf). Cyrus tries to remake reality. Climax features Champion Cynthia confronting Cyrus in person.
Read the full Diamond & Pearl guidePokémon featured · 9
Who appears.
Linked entries open the species page on the Pokédex. Items without a sprite (alternate forms, regional variants, generic group references) fall back to a name pill.
More from this arc
Other episodes in Galactic Battles.
Episode synopsis from Bulbapedia, CC-BY-NC-SA 2.5. Editorial context (arc affiliation, cultural moments, character signatures) hand-verified May 2026. Pokémon, character names, and series titles © Nintendo, Game Freak, Creatures Inc., The Pokémon Company, OLM Inc. This is an unofficial fan reference.