It's the 100th Blue's Clues Day and everyone in the house has put together a celebration. It's hosted by Mr. Salt and there's a special guest too: Steve, all the way from college. In addition to some singing and finding out some of the favorite Blue's Clues moments from various real kids, we also take a look back at memorable moments from past episodes through a number of montages: Places We've Been Laughs We've Had Things We've Learned Clues We've Found Songs We've Sung We also get a sneak peek at what's coming up in future episodes of the program.