You may think that Jack Frost is the only one who can control the frosty weather, but you're wrong, in this thrilling story The Man in the Moon chooses a girl to accompany Jack and the rest of the guardians in an unexpected fight between Pitch who had been planning on his revenge.

Jack Frost is entrusted with the care of a young looking love sprite, Cupid. She is not a naked, chubby cherub like many believe her to be, but a young looking girl with avian features and always placed in the "borderline naughty" list. Because of his failure at eliminating the Guardians, Pitch has set his eyes on Cupid as his newly found muse for vengeance. Now it is up to Jack to make sure Cupid doesn't fall into the wrong hands while trying to make others believe in her. But, does he really want to share Cupid with the kids around them?