Mediators are the law's androgynous special agents. They are tasked to patrol all of Urbancity and prevent the infection from spreading at all means.
After someone at a rave was tested positive for an infection, the Mediators got notified and ambushed the party. They each split up to do their investigation. Meanwhile one mediator found out that Becca and Josh were the victims of the infection, another mediator managed to pursue Lesya. Kenzell stepped in as a distraction for her to escape.