Miraculous: Tales of Ladybug & Cat Noir: 5x27

Action

Marinette, Adrien and their friends want to actively fight plastic pollution in Paris. But
at only their own scale, the task seems just too enormous. It occurs to Marinette that
they should try to fix the problem at the root, by trying to convince the largest plastic
manufacturer in person to change his habits. But the heroes will meet an opponent in
plain clothes, more fearsome than even some supervillains. And what if, on top of
that, Monarch decided to akumatize the baron of plastic?