• Air date: 10 Mar '99 31 episodes
      The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.
  • List of Episodes (31)
    • 26. Fighting Families

      23 Oct '99
      Arnold, Grandpa, Grandma, Ernie, and Mr. Hyunh compete on a game show against a "perfect" family from PS 119
    • 27. Headless Cabbie

      30 Oct '99
      Arnold tells an urban legend about a decapitated taxi driver. The gang goes out, only to find the details in the story are becoming real.
    • 28. Friday the 13th

      30 Oct '99
      Arnold and Gerald try to prove superstitions are fictitious, only for it all to backfire on them.
    • 29. Veterans Day

      06 Nov '99
      Arnold's Grandpa recalls his adventures as a soldier in the Second World War, outwitting a regiment of Nazis, while Gerald's dad, Martin, remembers his own time serving in Vietnam.
    • 30. Helga on the Couch

      04 Dec '99
      Helga confides in the school psychiatrist about her social life, family life, and her love for Arnold.
    • 31. Dino Checks Out

      11 Dec '99
      Dino Spumoni is found missing and then declared dead after what appears to be a suicide attempt. but Arnold finds out that this isn't the case, and he secretly lives in the boarding house, believing that his work will skyrocket in value after his "death".