Stream the full Hey Arnold! Season 4 Episode 1 movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.
Hey Arnold!: Full Moon: Harold, Stinky, and Sid are caught for mooning in front of Principal Wartz, so he blames Arnold for being with them, and they have to confess what they did. Student Teacher: Olga becomes Mr. Simmons new assistant and she tells things about Helga to the class, which she gets mad about.