Joe needs to figure out what Blue needs help playing. Joe and the viewers also help Mr. Salt and Mrs. Pepper make blueberry pancakes for Blue and find what Baby Bear, Cinderella and Gingerbread Boy are missing for a porridge party.

Joe needs to figure out who Blue wants to add to a painting called, the "Portrait of Pals". Joe, Blue and the viewers also mix colors for the painting and help colors in a book find their friends.

Joe needs to figure out what Blue's favorite snack is. Joe, Blue and the viewers also count squirrels and birds with Shovel and Pail and feed a felt farmer's pigs.

Joe needs to figure out what to put on the front of a book of favorite things. Joe, Blue and the viewers also find stickers for everyone's pages.

Joe needs to figure out what Blue wants from a pretend store. Joe, Blue and the viewers also buy a toy sailboat, a picture frame and strawberries and help out at a furniture store.

Joe needs to figure out what he, Blue and Periwinkle can do while they wait for an egg to hatch. Joe, Blue and the viewers also put together a toy airplane with Periwinkle and find activities to pass time in a long line.

Joe, Blue and their friends are celebrating one hundred episodes by having a special show with montages full of clips from previous episodes and a surprise visit from Steve.

The viewers need to figure out what Blue and her friends need to do in order to finish preparing for Joe's birthday party. Blue and the viewers also set a table for the party, find a candle for the birthday cake and keep Joe busy outside until it is time for him to come back inside.

Joe needs to figure out what makes Blue happy. Joe, Blue and the viewers also find out what makes Shovel, Periwinkle and Tickety Tock happy and solve problems for Felix and his friends.

Joe needs to figure out what kind of boat Blue wants to make for a boat float in the backyard. Joe, Blue and the viewers also help Periwinkle, Shovel and Pail float their boats and learn how different boats move on the water.

Joe needs to figure out what Blue's favorite part of bedtime is. Joe, Blue and the viewers also find different parts of the body to wash and find pajamas for Tickety Tock, Shovel and Pail.

Joe needs to figure out where Blue wants to search for shapes. Joe, Blue and the viewers also find shapes in the bedroom and make a stop sign, a fish and a car using felt shapes.

Joe needs to figure out what Blue wants to do after her checkup. Joe and the viewers also find what Shovel and Pail need for a pretend checkup with three stuffed animals and help out at Blue's checkup.

Joe needs to figure out what Blue's contraption will do. Joe, Blue and the viewers also watch contraptions in the backyard and skidoo into a computer game to find the missing parts to different contraptions.

Joe needs to figure out where Blue wants to play her new game. Joe, Blue and the viewers also play a song game with Periwinkle and pretend with a felt friend.

Joe needs to figure out who the surprise guest visiting the yellow house is. Joe, Blue and the viewers also clean up the bedroom and find what is out of place at Blue's school.

Joe needs to figure out what Blue wants the viewers to dress up as. Joe, Blue and the viewers also see what Shovel, Pail and Slippery Soap dress up as and find different costumes for an ostrich's play.

Joe needs to figure out what instrument Blue wants to play in a band. Joe, Blue and the viewers also clap rhythms and act out a story with piano music.

Joe needs to figure out what Blue wants to find. Joe, Blue and the viewers also guide a felt friend back to his home and look in different directions to find Little Bo Peep's sheep.

Joe needs to figure out what two rabbits in a picture story will do when they reach their grandmother's house. Joe, Blue and the viewers also find the correct pictures for the story and skidoo into three blank pieces of paper to make three new pictures for the story.

Joe needs to figure out what Blue wants to put in the final box of a cardboard train called, the "Alphabet Train". Joe, Blue and the viewers also find other friends and objects to put in the other alphabet boxes in the backyard and on a clothesline as well as a magnet board.

Joe needs to figure out what Blue's favorite number is. Joe, Blue and the viewers also help Mr. Salt and Paprika find missing number magnets and do addition and subtraction in a story about a jellybean tree.

Joe needs to figure out what Blue predicts what will happen on the patio of the yellow house. Joe, Blue and the viewers also make predictions in the backyard as well as in a storybook with a bookmark voiced by Henry Winkler.

Joe needs to figure out what Blue is excited about in a neighborhood festival. Joe, Blue and the viewers also play festival games with Periwinkle, Slippery Soap and Marlee the librarian. At the beginning of the credits is a dedication card to Fred Rogers, who died of stomach cancer four months before this episode aired.

Joe needs to figure out what Blue's favorite part of school is. Joe, Blue and the viewers also help Periwinkle throughout his first day at school.

Joe needs to figure out what Blue wants to play with her stuffed toy named Polka Dots. Joe, Blue and the viewers also let Slippery Soap and Tickety Tock play with Polka Dots and guess what Periwinkle is imagining his paper plate friend to be.

Joe needs to figure out what will be done after finishing a list for a scavenger hunt. Joe, Blue and the viewers also find ingredients for cupcakes in the kitchen along with different shapes in the felt frame.

Joe needs to figure out what Blue wants to write a label for. Joe, Blue and the viewers also make labels for boxes in the attic and paint the four letters that spell the word, "jump".

Joe needs to figure out what Blue wants to write in her message for Magenta. Joe, Blue and the viewers also do assigned chores in Magenta's house and read an email from her.

Joe needs to figure out what feeling Blue wants to do for a feelings game. Joe, Blue and the viewers also find the correct emotion stickers for Periwinkle's book and find the correct actors for a shadow play.

Joe needs to figure out where he and Blue are going on a car trip. Joe, Blue and the viewers also sing along to "The Backseat Boogie" (performed by Patti LaBelle, with Casey Kasem as the radio announcer), count the gallons of gasoline needed to refuel the car and find numbers while waiting at a toll booth.

Joe needs to figure out what Blue wants to look carefully at. Joe, Blue and the viewers also play "Gopher's Mystery Box" with Shovel and Pail and skidoo to a game show called, "How Observant Are You?", where they make observations while watching a short film about two children.

Joe needs to figure out what Blue wants to make the viewers do. Joe, Blue and the viewers also find solutions to problems in the backyard with Shovel and Tickety Tock as well as with Blue's friends at school.

Joe needs to figure out what animal Blue wants to find. Joe, Blue and the viewers also search for animals that have been wandering around the yellow house and learn how they use their special traits as each animal skidoos back into a book about animals where they belong.

Joe needs to figure out what Blue wants to do outside after a morning routine. Joe, Blue and the viewers also sing songs about eating breakfast, brushing teeth, putting clothes on and tying shoes.

Joe, Blue and their friends watch a holiday movie about Blue's first holiday. During an intermission, Joe, Blue and the viewers get a surprise phone call from Steve at college and read a holiday card from families who celebrate four different holidays. The holiday movie continues with Blue as a baby playing the first ever game of Blue's Clues in order to find baby Joe's missing duck blanket.