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Watch Blue's Clues Season 3 Episode 15 Online

  • 7.689/10
  • COUNTRIES: Canada,United States of America
  • Subtitles: English

There's somebody building a fort in the backyard of the Blue's Clues house, but we have no idea who it is. In this episode, we put on our detective caps and logical-thinking skills. There's a mystery to be solved. Come along as we investigate, with a little help from Mr. Salt and all of our friends.