Annie and her pet rabbit, Snowball, invite Henry and Mudge to a dress-up birthday party, but there is some confusion about what the guests are supposed to wear.

Scaredy Squirrel prepares for his birthday party but at 1:00 his party animals surprise him with a party.

Activities at a birthday party for Clifford, the big red dog, provide opportunities for counting balloons, presents, and other objects from one to ten.

As Senor Calavera prepares for Grandma Beetle's birthday he finds an alphabetical assortment of unusual presents, but with the help of Zelmiro the Ghost, he finds the best gift of all.

At Clifford's birthday party, the children and their dogs give him some gifts, a big cake, and an extra-special surprise.

After canine friends Scrappy and Flappy play an unusual game of catch, Scrappy complains that everyone has forgotten his birthday, but Flappy surprises him.

Frances is jealous of her sister's birthday, but birthday spirit moves her to reluctantly give her coveted gift.

Arthur has a surprise for D.W. on her birthday.

With her birthday coming up, Jessica hopes that, just maybe, her present will be a real-live potbellied pig. Jessica can hardly wait for her party with Judy Moody and all their friends. But Judy Moody is acting like a pig-head, and Jessica UN-invites her from the party. To make matters worse, Jessica has snooped around the house and has found zero sign of a pig present. Could her birthday be any more of a disaster?

May seems to be the month for birthday parties, and Kylie Jean is scheduled for so many sleepovers that she is starting to miss her family--but her own birthday is coming up, and the best present may be a new baby cousin.