The original ponies are here! North Star, Lickety-Split, Minty, Rosedust, Lofty, and more team up with Starlight Glimmer, Twilight Sparkle, and the rest of the gang to get to the bottom of the strange, havoc-wreaking Smooze. The plan of witches Grackle and Dyre is heating up! Can the combined forces of our favorite ponies stop them?!