While building sandcastles on the beach, George uses the Man with the Yellow Hat's hat as a bucket, but the waves take the hat out to sea; George helps Hundley build his confidence to meet his role model by finding the perfect game for them to play.
Pinkalicious and Peter build a house to attract springtime fairies; Pinkalicious and Peter create a robot to help them clean their rooms, but they end up with a big mess.
Led by Squeeks, the gang is on their way to the grape patch because today the grapes will finally be ripe, and ready to eat; Ronald challenges Nature Cat and his friends to compete in the Glow Games.
Ari and Olive make Elinor's favorite snack, backyard soup, when she is stuck at home after hurting her foot; Elinor becomes fascinated with dandelions.
Elmo is mailing his first letter, but he's worried something will happen to it; he follows the mail carrier to the post office to see how everyone's mail gets sorted; Elmo learns that mail carriers are everyday heroes.
Rosie finally gets the courage to go into the Fun House at the carnival, but then finds out she doesn't have enough tickets; Rosie goes to the pet store to get something for Crystal's new bunny.
Volunteer firefighters make a special visit to school; Daniel wants to pretend to be the daddy when he gets a new doll, but his friends want him to be Tige-y the Adventure Tiger instead.