Pokémon: Diamond and Pearl · Diamond and Pearl arc
DP044 · Mass Hip-Po-Sis!
迷子のヒポポタスを助けろ！
Synopsis
What happens.
After a lunch break, Ash, Dawn and Brock recall their Pokémon and prepare to hit the road once again. Pikachu suddenly imitates Turtwig, and Brock realizes that Turtwig went by itself into the woods.
Synopsis adapted from Bulbapedia's DP044 entry, used under CC-BY-NC-SA 2.5.
Story arc · DP001-DP052
Diamond and Pearl.
Ash arrives in Sinnoh, meets Dawn and her Piplup, reunites with Brock. Picks Turtwig from Rowan; the Sinnoh badge run begins. Paul introduced as a foil.
Read the full Diamond & Pearl guidePokémon featured · 15
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 Diamond and Pearl.
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.