Arnold is Nickelodeon's first-ever football-headed, untucked-shirted, city-living, stickball-playing kid toon star. Alright, so he's Nick's ONLY football-headed, untucked-shirted, city-living, stickball-playing kid toon star, but that doesn't make him any less special! Arnold lives in his grandparents' boarding house with a group of eccentric grown-ups who don't always get along. Together with his cool-as-ice best pal Gerald, tough-as-nails Helga--the girl who both hates and loves him--and the rest of the gang from the neighborhood, Arnold tackles life in the big city the best way a wise-beyond-his-years fourth-grader knows how.