Paris is no longer safe. A new villain known only as Chronos has appeared, wielding a stolen Miraculous that bends time itself. Each strike erases moments from history, rewriting the present and leaving Ladybug and Chat Noir with fragments of a world they barely recognize.
When a mysterious hourglass pendant begins to glow in Marinette's hands, she learns it isn't just a trinket but an ancient Miraculous tool that can guide its holder through the folds of time. Using it means risking paradoxes, lost memories, and the chance of becoming trapped in another era forever.
To stop Chronos, Ladybug and Chat Noir must travel into Paris's past and future, unravel a centuries-old conspiracy surrounding the first Guardian, and confront shadowy versions of themselves who have already lost the fight. Every decision they make echoes across timelines-one mistake could doom not just their city, but reality itself.
As the Hourglass of Fate counts down, they'll discover that the key to winning may lie not in changing the past, but in facing the darkest truth about their own destinies.