Life in the big city is one big adventure for Arnold. Living with his grandparents, who run the Sunset Arms boarding house, Arnold shares a roof with a diverse and unusual menagerie of characters (including his pet pig!). But as any fourth grader knows, some of the most memorable people you'll ever meet are in school. And with friends like Arnold's (including storyteller Gerald, class jinx Eugene, sometime-bully Harold, and the tomboy Helga, who harbours a secret crush on our hero), you can be sure that he's got some funny exploits to share with you.