The episode starts out with Steve looking for Joe. Blue has something she wants to give to Joe, but first Steve and Blue have to find him. Steve and Joe end up in a back and forth hide-and-seek game, with both of them looking for each other inside and outside, until finally they meet up outside. This episode is all about Joe playing his first game of Blue's Clues, in which he tries to find out what it is that Blue wants to give him. He also gets to do his very first skidoo, into a picture of colored shapes, where, he Joe and Blue play another hide-and-seek game, but this time using distance comparisons to find the shape where someone is hiding.

Steve reveals to everyone in the house that he's going to be going to college and that Joe is going to stay and play with them while he's away. He skiddoos to show everyone what college is like and meanwhile, Joe and the entire gang set up a surprise goodbye party for Steve.

Today, Joe needs our help. That's not unusual, but it happens to be the particular theme for this episode. We help out Joe, Blue and the other characters in a number of ways. For example, we help Mr. Salt and Mrs. Pepper to make some blueberry pancakes for Blue. We also help out some friends in Storybook Forest to prepare for a porridge party.

Blue has been growing and we help her and Joe use a chart to measure her. This gives us an idea when Mr. Salt wants help with snack preparation. We can use a chart to list everyone's favorite snack. Throughout the episode, we record the favorite snacks of the characters on our handy chart with columns and rows. We help Shovel and Pail with their own chart of backyard birds and squirrels. We also skidoo into a farm, where we use another chart to feed a farmer's colorful pigs.

Joe and everyone else at the house are all creating pages for a scrapbook called ""The Big Book About Us."" Joe creates his on a green piece of paper, putting on it some of his favorite things and encourages us to create one as well. We also help out some of the other characters to put neat things on their pages that show what they like.

Blue's Clues is a puppy with a clue - three actually - and preschoolers will play along with this original play-to-learn show. Through problem-solving and skill-building games, preschoolers help Steve or Joe find the answer.

Today we play store with Joe, helping him to purchase things from shops set up by our various friends. We use measurement and logic to help determine the right things to buy. Things purchased include a hat for Boris the duck and strawberries. A Blue Skidoo segment takes us into a furniture store, where we help characters to purchase new items of furniture to replace the old ones that they have outgrown.

Periwinkle and Blue have discovered an egg in a nest in the backyard, but it hasn't hatched. They and Joe can't wait for it to hatch and the baby bird to come out, but it seems like it might take a while. It seems that we have to be patient and, until then, come up with some fun ways to pass the time. So we help Joe, Periwinkle, Blue to think of things to do and help out when things don't go right.

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.

With Mailbox having distracted Joe to ""help him"" in the backyard, we learn that the Blue's Clues characters need our help in doing a surprise party for Joe. We help them out by keeping Joe distracted and assisting in the various preparations. We work hard, with Mr. Salt guiding us in getting things ready. With everything in place, it's a party to remember.

In this episode, we talk about what makes us happy and also find out what makes some of the Blue's Clues characters happy. Periwinkle likes magic, of course and Shovel has a favorite animal he likes to do impressions of. Joe's happy just to see us because we're so helpful. Unfortunately, sometimes we aren't always happy, as we find out in the Blue Skiddoo segment. There, we find several characters that are having problems and help them to solve their problems so that they're happy again.

In this episode, we have fun with the characters making boats and learning more about them. We learn how boats should be constructed and things that will cause them to sink or float. We help all of the characters to make sure that their boats float. Ia Blue Skidoo segment, we visit a beach filled with different types of boats. We help some of them to figure out why they're not moving, or going in circles. Then, we get to take an exciting ride on a speedboat.

We've come to the Blue's Clues house at night and so we help Joe and Blue with their bedtime routine - their bedtime business! We watch as Joe tucks in his duck Boris and then learn about important pre-sleepytime activities. The characters have small clothing crisis, but with our help in identifying clothing through features such as spots and stripes, the problem is solved. We also help out with washing up, reading a story and more.

Blue has created a fun game called Shape Searchers. She pulls out a shape from a bag of hers and we try to find it. In this episode, we search for shapes in all sorts of places, pointing them out as we see them. We also have a Blue Skidoo segment filled with shapes. We meet some shapes and show them how they can combine with other shapes to make various things.

Blue is going to the doctor. She isn't sick, but she is getting a checkup and so we help her gather the things she needs to get ready, including a stuffed animal to hold on to in case she gets scared. We play doctor and nurse with Shovel and Pail and later join Blue for her checkup. After her checkup, Blue has a special surprise for Joe.

Joe and Blue have been having some fun making neat contraptions. In this episode, we learn about devices such a pulleys and levers as we check out the contraptions the various characters have made. We use our prediction skills to try and figure out what the contraptions do. We also skidoo into a computer contraption game where we help Gilda the builder to complete some unfinished contraptions.

Joe has invented a brand new game called ""Presto Change-Joe"" and his idea is catching on with the other characters. In this episode, we have fun in taking part in new games, doing things like playing pretend and imitating behaviors. A game of Periwinkle's provides an opportunity for memorization. We also join in a game of Franny felt friend's in a Blue Skidoo segment and act out based on things that are lying around her room.

Joe and Blue are expecting a surprise guest, so to get ready she and Joe clean Blue's room, with our help in putting things away in the proper places. We also help Blue put away her toys. In the Blue Skidoo segment, we visit Blue's preschool and help Orange Kitten, Green Puppy and Duck put away the toys to get the preschool cleaned up. Back at the Blue's Clues house, we set up an apple juice party for the guest.

Today, the characters are playing dress-up and we get to watch them, join in and have some fun pretending. The fun starts as Joe becomes Explorer Joe and later dresses up as a robot. We see some of our favorite characters dress up as a crossing guard, an astronaut and more. Later, in a Blue Skidoo segment, we help an ostrich to put on a play, finding the proper props and costumes to make the play work.

Blue has created ""Blue's Big Band"" and many of the characters, including Joe and ourselves will be playing instruments in the band. We practice with Tickety and later listen to some music that Mr. Salt, Mrs. Pepper and family are creating simply by using an old washboard. We follow along to some of Periwinkle's beats as he plays on the drums. Later, we skiddoo and meet Piano, who guides us through a musical story about a group of piggies.

When Joe needs help finding Baby Bird, we learn about the importance of directions. From left and right to up and down and more, we learn all about directions in this episode. Directions come in handy when a felt friend needs our help in getting back to his felt frame. They can even help classic storybook characters, such as Little Bo Peep, when help her to find her sheep in a Blue Skidoo segment.

Joe and Blue are creating a ""story wall"" - a series of pictures on a wall telling the tale of ""Two Rabbits Who Went to Their Grandma's House."" Their names are Rebecca and Robbie and this episode we learn their story and even help to create it. We consider some of the characters' creations for the story and help them select the right pictures that match the story they want to tell. We even get to skiddoo into the story and watch events as they happen.

Joe and Blue are creating an alphabet train, with the help of the Blue's Clues characters. There are going to be boxes from A-Z connected to the train and each one will contain something to represent that letter. We help the characters throughout to figure out what they can put it the boxes and also help to make sure everything is in order. Our skidoo trip takes us into a magnet board, where we find every more things for the boxes. Once train is complete, we join in a song about the alphabet.

In this episode, we explore numbers, counting and basic arithmetic. We help out to find missing numbers by using counting to figure out where they're hiding. We also skiddoo into a book filled with numbers. There, we help out a couple of different numbers to tell a story and learn addition and subtraction in the process.

When we correctly predict that when Blue pokes a soap bubble, it'll pop, we decide it would be fun to predict other things as well. In this episode, we use observations and logic to figure out things that will happen. We watch a robot race that Paprika sets up and use what she tells us about the robots to guess which will cross the finish line first. In the Blue Skidoo segment, we hop inside a storybook, where we predict what will happen in the story of Penguin Pierre, with the help of Bookmark to guide us along.