As Ash and his friends head towards the harbor, they happen upon the Dragon Buster Georgia and the "Blizzard Pokémon" Vanilluxe. Georgia tells them she's currently on her way to the Ferroseed Laboratories in order to acquire "moss that enhances Pokémon's abilities". Ash and his friends find this interesting, and head to the laboratory together with Georgia, where the aforementioned "moss that enhances Pokémon's abilities" is created from rocks and stones taken into the body of the "Thorn Seed Pokémon" Ferroseed.
Suddenly, a large mass of moss emerges from the room where an experiment to create moss from Electric Stones ("Chargestones") was being conducted! The laboratory ends up completely covered! Ash and the others quickly escape the place, but Iris, Axew and Oshawott end up left behind on the laboratory roof! And Vanilluxe, being an Ice-type, which Iris is uncomfortable with, is on the roof with them as well! Iris shakes in fear at both the approaching moss and Vanilluxe...! What will happen now!?
