Future Boy Conan S01 E03 The First Friend

"Witness the imagination of Hayao Miyazaki before Ghibli"

Conan arrives at an island where a wild boy, Jimsy, lives. After an initial fight, Conan develops a good friendship with Jimsy. The Baracuda comes to the same island, getting the inhabitants to salvage for plastic. After Conan finds out the Barracuda is from Industria, he and Jimsy plan to stow away aboard the ship.