When the gang all leaves the Big Blue House for the day to go to a square dance, BearTM is looking forward to getting a lot of chores done. However, each chore he starts somehow reminds him of one of his friends, and before long, the house seems awfully quiet. By the time his friends return, Bear has realized that the Big Blue House just isn't the same without them.

Bear and his friends are interacting with water in this episode --- be it real or imaginary. Ojo, for example, is pretending to sail a ship in the living room. Pip and Pop join her in the fun. Bear contemplates some questions of his about water --- just what shape it is and why it's so wet. He finds Tutter in the kitchen trying to get some water of his own. He's trying to build something to make his way to the sink, but Bear helps him by giving him a lift. Bear also finds Treelo in the bathtub playing with bubbles. When the bubbles start to overflow, Bear has him pull the plug, but he's worried he'll go down the drain. Bear assures him that the drain is only for water (and bubbles). In the Shadow segment, Shadow tells the story of "The Itsy Bitsy Spider". Songs ■Oh, Water, Water, Water ■Need a Little Help Today

Notes ■This episode includes a brief segment in which real kids talk about some of the shapes that water takes on. These include raindrops, drops from a sprinkler and waves. ■Tutter uses various boxes in his attempt to construct something to help him reach the faucet. Some of the boxes being used are Kellogg's Frosted Flakes, Apple Jacks, Froot Loops, and Nabisco's Ritz Bits. The letters of the brand's name on the boxes are somewhat obscured to prevent Trademark and Copyright Information.

Today is Tutter's birthday, and the friends in the Big Blue House decide to throw him a special surprise birthday party. Pip and Pop are placed in charge of the decorations, but run into trouble with the balloons. All the noise attracts Tutter, but Bear manages to head him off with our help. Tutter learns that having a birthday means becoming a year older. He speculates on all the great things he'll be able to do while he's older. Ojo works on the cake and Treelo wraps Tutter's present. Treelo, though, gets so excited about the birthday that at first he wants to keep the present for himself. Songs ■When I'm Older ■Happy, Happy Birthday Notes ■A big deal is made about Tutter's present in this episode, but viewers never find out what it is. ■Luna is so old that she doesn't remember when her birthday is. ■Shadow does not appear in this episode. The time normally spent on her story is taken up by Tutter's birthday party. ■The events of this episode were the basis for the stage show Bear in the Big Blue House Live: Surprise Party. This stage show no longer tours, but is available on video. ■The "Happy, Happy Birthday" song is listed as simply "The Birthday Song" in the closing credits. Additionally, the closing credits run longer than usual.

Tutter is excited because Bear has promised to bring him a box, but he's getting a bit impatient at the wait. Viewers learn that the box is a rectangle and that there are shapes all around. They also find out that everyone has their own unique shape --- something that Ojo, Pip and Pop learn when they become shape explorers. Treelo also learns about shapes when Bear plays with him in a "tent" he made out of a bedsheet. Shadow also pays Bear a visit and tells a story of a very special shape --- a star. Songs ■Me, I'm the Shape of the Bear (and Reprise) ■Twinkle Twinkle Little Star Notes ■When Ojo is playing with her blocks, she sings "Heigh-ho. Heigh-ho. I love my blocks, you know." This is a play on "Heigh-ho. Heigh-ho. It's off to work we go" --- lyrics from the song "Heigh-Ho" in Disney's Snow White and the Seven Dwarfs. ■The Bear-only version of the song in this episode is Track 18 on the album Songs from Jim Henson's Bear in the Big Blue House. On the album it is titled simply "Shape of a Bear," but on the credits at the end of the episode, it is listed as "Me, I'm the Shape of the Bear."