Adrien must attend a dance organized by his father and Mrs. Tsurugi. He will be the King of the Ball alongside Kagami, who has been chosen to be this year's Queen. But neither of them wish to go for the dance.
After Ladybug and Cat Noir lose their memories, they must find a way to defeat Hawk Moth and get their memories back before they learn too much about one another.
A supervillain comes to Paris and interrupts Marinette's attempts to think about her future as the villain transforms people's childhood dreams into nightmares.
After stealing the Miracle Box, Shadow Moth turns into Monarch and uses the Rabbit Miraculous to return to a vulnerable moment in Ladybug and Cat Noir's past to capture their Miraculous.