|Omega Alpha Adventure 8|
| This plot summary is incomplete.|
Please feel free to edit this plot summary to add missing sections and complete it.
- Zinnia and a small army of Team Magma and Team Aqua Grunts arrive at Sea Mauville.
- Zinnia reveals that in addition to Team Magma, she infiltrated Team Aqua and made friends in both teams who agreed to stop the Devon Corporation.
- Zinnia sends the Grunts to battle in order to steal the dimensional shifter.
- Sapphire attempts to keep the dimensional shifter away, but has her Key Stone taken away by Zinnia.
- Zinnia reveals everything about the meteoroid to Sapphire.
- During the commotion, the mysterious Pokémon takes Sapphire away.
- Ruby arrives at Sea Mauville to stop the fighting and Mega Evolves Mumu into Mega Swampert.
- Gabby and Ty continue their investigation, and have discovered meteors falling in six different locations.
- For a list of all major events in the Pokémon Adventures manga, please see the timeline of events.
|Spoilers end here.|
- Steven Stone
- Amber (flashback)
- Gabby and Ty/Maryann and Tyler
- Mr. Briney
- Mr. Stone
- Renza (flashback)
- Jinga (flashback)
- Tomatoma (flashback)
- Lumiose Press editor-in-chief
- Team Magma Grunts
- Team Aqua Grunts
- Gardevoir (Rara/Ruru; Ruby's)
- Swampert (Mumu/Zuzu; Ruby's; Mega Swampert)
- Plusle (formerly Ruby's)
- Blaziken (Chic/Toro; Sapphire's; Mega Blaziken)
- Minun (formerly Sapphire's)
- Sceptile (Emerald's; Mega Sceptile)
- Sudowoodo (Emerald's)
- Dusclops (Emerald's)
- Shelgon (Drake's)
- Metagross (Steven's; Mega Metagross)
- Dragonite (Ultima's)
- Whismur (Aster; Zinnia's)
- Goodra (Zinnia's)
- Pelipper (Peeko; Mr. Briney's)
- Spinda (Editor-in-chief's)
- Numel (Team Magma Grunt's)
- Koffing (Team Magma Grunt's)
- Carvanha (Team Aqua Grunt's)
- Grimer (Team Aqua Grunt's)
- Flygon (Draconids'; ×3; flashback)
- Latios (Adventures; Mega Latios)
- Rayquaza (Adventures; flashback)
- Hoopa (Confined; silhouetted)