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Silver's side:
Silver confronts Petrel about what he knows about the plates, but a Safari Zone guard distracts him and Petrel manages to escape Weavile. Petrel shows Silver his disguises (because he can do that), and he shows that he can mask himself as Lance. When Silver asks him if he met Lance before, Petrel says he also defeated him. (D8 noes)
Meanwhile, Crystal takes the children to the Safari Zone (aw, Field trip~) and her mom came along with her, because she wanted to go to. Crystal is in her lab coat, but her mom yells at her for wearing something like that when they are on an outing, so she makes her change into new clothes (hence the Lyra/Kotone clothes. Geez Crystal's mom, you have no sense in fashion...) She sees Silver and Eusine in the Safari zone too. Eusine offers Silver some help, saying that he can get Morty to help him find the other plates.
Gold's Side of the story:
Gold is still participating in the Pokeathelon, now he's using Togetaro (<3), Sudowoodo, and Sunflora.
...yeah, that's pretty much it.