Joseph decides to turn the butcher shop into a marijuana café and drives to the Netherlands to see how things operate there.

With Gérard on board, the Hazan family looks to raise money to pay off Clém so that she will have her minister father process their marijuana café application first.

The family owns an old farm in the countryside, and they move their crops to a barn there, disguising the operation as a meat processing plant.

Other prisoners respect the creators of Pastraweed but also want drug-related favours in exchange for protection, including a business meeting with their dead boss, Jaures.

Just as they are about to be released, the men are broken out of prison and, with Aure and Ludmila, who have been kidnapped off the street, flown to a monastery in a foreign country.

Catherine turns out to be a rival drug lord and poses as another hostage in order to obtain information from the Hazans.

To stop their captors from killing them, Joseph and Olivier convince them they have also been developing magic mushrooms, which they found growing around the mouldy plumbing.

High on hallucinogens, the boys accidentally escape their prison, but the local corrupt police eventually return them to the monastery.

Aïda gets the French police to organise a rescue mission, knowing Catherine's affiliations and working out where they are being held.