When Mila's parents begin her day with an April Fool's prank, Mila is determined to plan the best April Fool's Day pranks ever! But Mila quickly discovers it's hard to come up with good ideas. And while she's trying, everyone else is playing pranks on HER! Will the day end before Mila figures out how to "April Fool" Tony Baloney, Rosie, and her parents? Or will she have to wait another whole year to plan the best April Fool's prank ever?