Mai and Saki encounter an enigmatic individual while en route to a singing competition. The man seeks out the most ancient clock in town, which functions as a gateway to the World of Clocks. However, he serves Dark Fall and plots to halt time to bring about the planet's ruin. The Pretty Cure team, aided by the clock's spirits, must battle through his flawless labyrinth and restore the flow of time. This event unfolds in the latter part of Futari wa Precure Splash☆Star.