 Viewers are invited to celebrate the tenth anniversary of "Blue s Clues" as Blue becomes a big sister when she searches for her baby brother. For the first time ever, the characters of "Blue s Room" are together with many of the characters from the original "Blue s Clues." As they gather together for a family party, Blue has a big announcement. She has a baby brother, but she isn t sure who he is. She and Joe skidoo off to Puppyville to find him. There, they learn while there are many puppies there who could be Blue s brother, they ll have to play a special game of Gold Clues (which also includes a golden Notebook and golden Thinking Chair) to find out just who Blue s brother is. As they being their search through the many areas of Puppyville, they meet a small, white puppy named Sprinkles. Sprinkles is young and still has a lot of things to learn --- such as the alphabet and his colors. He finds that each time he learns something new, with our help, he gains a new set of colorful spots.