What if there were more to the histories of Santa Claus, the Easter Bunny, the Tooth Fairy and the Sandman than anyone ever believed? What if the benevolent givers of gifts, eggs, money and dreams were much more than they seemed? They are! Immortal, strong and swift, these childhood legends have been tasked with protecting the innocence and imagination of kids of all ages to the fullest extent of their powers. When a menace arrives with a plan to erase the Guardians from existence by robbing children of their hopes and dreams, these beloved crusaders need the help of Jack Frost, a reluctant new recruit who'd rather enjoy a snow day than save the world. From the deepest recesses of the North Pole, to the rooftops of Shanghai, to a tiny town in New England and beyond, the Guardians engage in an epic, global battle against the seductively wicked bogeyman Pitch, whose machinations to conquer the world by spreading fear across the globe can only be conquered by the power of belief and the magic of the Guardians.