The funny consequence of a sleepover birthday party is that the best friends Megan and Page, as well as Veronica, who is about to become a stepsister, can't remember the night before when they wake up. Now they must return to their steps to search for the missing birthday girl Anna Maria... And explain why there are a group of ducklings in the bathtub, what happened to Megan's left eyebrow, and why she is wearing the iconic black hoodie of the unattainable Spice Girl Jack Ramirez (played by Rodriguez).