A mysterious glowing balloon pops above the backyard and whooshes Sunny and Mia into a quest placing six sparks across six wildly different worlds-from leaf-high-fiving woods to ticklish tornadoes and circus spotlight chases Battling a grumpy shadow blob with giggles, zoomies, and one very determined helicopter tail, they restore the magic in the zippiest, sparkliest adventure their backyard has ever seen.