Dawn wins a special Pok?mon egg for battling in a Johto region festival, but before she can find out what kind of Pok?mon is inside the egg, Team Rocket drops in and steals it.
Exhausted at the end of her busiest time of year, Fira, a light-talent fairy, must cope with an illness among the fireflies and train three rambunctious new fairies so that other Never Land fairies can do their work.
Four tiny, flying horses suddenly come into being, blown out of a dandelion by a lonely girl, and set out to discover who they are and what they are supposed to do with their magical powers.
On a special after-hours tour of the Coolsville Aquarium, the gang tries to catch the Fishy Phantom, who has stolen the aquarium's rare rainbow flounder.
Katie and her friends find the first snow diamond and proceed to solve more of Mantora's riddles, and when a baby walrus and baby polar bear go missing, they attempt to locate them as well as the second diamond.