Priya Chakraborty plans a birthday party for her first client, Layla Aunty, personalizing everything from the invitations to the menu in Aunty's favorite color, but as party-time finally arrives, Priya is nervous something will go wrong.

Children excitedly discuss the details of their upcoming birthdays.

Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summers crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix's children's school. Josie has been listening to Alix's podcasts and thinks she might be an interesting subject for her series....

Children's birthdays are always strange in Willow Falls, but when Connor's little sister Grace falls into a frozen state on her tenth birthday, Amanda and Leo must travel back in time to find out what force prevented Angelina from casting the blessing that would have protected her.

Bulldozer wants to invite all of his coworkers to a party to celebrate his special day, but to them it's just another day for scooping, sifting, stirring, and more.

A girl is disappointed when she receives a chicken as a birthday gift from her abuela, until she realizes the chicken is planning a bigger present for her special day.

Siblings Jack and Anna decide to surprise their father with cupcakes for his birthday, but when ingredients begin falling into the cupcake batter they have no idea how the treats will turn out.

Fritz can't wait to turn five! His birthday starts off well when he eats all five of his birthday pancakes and gets brand-new sneakers that fit perfectly. But when he looks in the mirror, nothing has changed. And his teeth won't wiggle - not a single one. Even after he gets to wear the birthday crown and everyone sings to him at school, five still seems a lot like four. What will it take for Fritz to feel five?

Mr. Putter thinks he is too old to celebrate his birthday, but when he remembers some of his past birthdays, he changes his mind.

Little Duck celebrates his first birthday with the other animals on the farm by copying their examples, from shearing off all his feathers to taking a mudbath, before enjoying Farmer Brown's yummy frosted maple cake.