Routes 19-20, Seafoam Islands, Cinnabar Island, Pokémon Mansion, Cinnabar Gym (#007)

Joshua & Mr. Squirt finally acquire the item the show is named after, only to discover in Generation I it's actually the "Exp. All" and also it sucks. They then dive into Route 19, explore the Seafoam Islands, capture Articuno, and continue onto Cinnabar Island. Once there, they drop off their Fossils at Cinnabar Lab, uncover secrets in the Pokémon Mansion, and then douse Gym Leader Blaine to get the seventh badge.