In the episode, Marinette's best friend, Alya Césaire, becomes the supervillain Lady Wifi after Hawk Moth akumatizes her. After cornering Ladybug, Lady Wifi attempts to remove her mask ...

Since Marinette has told Alya that she is Ladybug, she has been trying to figure out how to decipher the grimoire. Alya assures Marinette that she is here to help her on stopping Shadow Moth from ...

As a precaution, Marinette gives a Ladybug kwagatama to Alya, so that she can access Ladybug's memories should anything happen to her. Marinette notices Adrien has a new friend, Sublime Bartlett ...

Chyralis akumatizes Alya, fueled by. Alya becomes Rena Frost, wielding icy illusions. Ladybug and Cat Noir face this frozen foe, navigating treacherous mirages to save their friend.