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 1 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.
The title of this episode is a play on the film House Party.
Welcome to the Blue House • Where O Where is Shadow • Goodbye Song • Great to Be at Home • No Place Like My Bedroom • Oh, Water, Water, Water • Need a Little Help Today (song) • When I'm Older • Happy, Happy Birthday • Shape of a Bear (song) • Picture of Health (song) • Quiet Time • The Bear Cha-Cha-Cha • Always Something to Share • Clean Up the House • Gravity • Falling for Fall (song) • What's in the Mail Today? (song) • Dear Grandma • Dancing the Day Away (song) • Treelo's Dance • The Otter Dancing School • Some of the Colors I See • Dirt, Dirt I Love You So • Why Can't the Dirt Just Leave Me Alone? • Everybody in the Tub • Everywhere There's Music • Hey, We Can Play • All Connected (song) • In the Middle of the Summer • In the Middle of Winter • Workin' Like a Kid • Magic in the Kitchen (song) • Springtime, Oh, Springtime • Spring Fever (song) • Always Something Good to Eat • Lost Thing (song) • Snow Bear, Where Can You Be? • Wonderful Sounds • Friends for Life (song) • When You Make Yourself a Friend