After coming under fire during the night, Theo and Willem aren't allowed to investigate the shooter on their own. They have to go back to pulling up weeds. Willem is relieved. But Theo has no intention of leaving the hunt to his former colleagues in the Serious Crimes Unit.

Theo and Willem suspect there's a mole among their colleagues. They soon begin to suspect District Attorney Jozias Blok. But what can two detectives from the cannabis task force do against a high-ranking prosecutor?