In Central-Eastern Europe, a so-called “grey zone” has emerged in the media, which tries to influence public opinion and pre-election political campaigns through hyper-partisan and sometimes even extremist – often anonymous or only seemingly “independent” – political communication, utilising conspiracy theories and ignoring the standards of ethical journalism. Our media research in the Czech Republic has, therefore, looked at the Czech political campaign communication between 1 September and 31 October 2021 to map and reveal the Czech “grey zone” media ecosystem, its role in the “dirty campaign,” and the war-related rhetoric later in 2022.