Mary-Kate and Ashley, ready to perform in the Harrington magic show, hit a snag when Ashley's partner leaves her trapped in a box, and Mary-Kate's mind-reading horse disappears.
Mary-Kate, sharing a room with her twin sister Ashley at White Oak Academy for the first time, must work fast to come up with a plan to turn her annoying sibling into the perfect roommate.
Mary-Kate and Ashley, stuck at boarding school over the holidays after their dad comes down with a tropical disease, decide things are not so bad after all when they meet a new boy with a romantic secret.
Mary-Kate and Ashley must decide whether to get new dates or get revenge when the boys they thought were going to take them to the Spring Fling ask other girls instead.