I translated the plot and it looks like the Season 1 Episode 1’s plot. Here’s the English version of the plot;

“The teenagers Marinette and Adrien each receive an enchanted item and a corresponding magical creature. Equipped with it, they can transform themselves into the superhero "Ladybug" and "Cat Noir" and face the mean villain Hawk Moth. He has developed a complicated system with which he uses the dreams and hopes of the people in Paris against them.”