Since 2008, Europe is immersed in a situation of political and social upheaval marked by, among other processes—such as the Brexit, the Scottish referendum on independence or the growth of new populist parties—, the strengthening of nationalism in Catalonia. In this context, the role of the media is crucial, since they are the main transmitters of what occurs abroad and, depending on how they present the information, a spread of pro-independence trends in regions with a historically strong nationalist sentiment throughout the continent can be more or less likely. With the objective of knowing the informative differences regarding the coverage of nationalism, this study applies a Critical Discourse Analysis (CDA) to the text and the audiovisual content present in the main article on the Catalan referendum of October 1st, 2017 published by the most read newspapers in six territories: Portugal and Switzerland—countries that do not have internal political problems related to independence movements—UK and Italy—that have this type of conflict—and Scotland and Northeast Italy—regions with high independence feeling. The analysis also includes structured and semi-structured interviews with the objective of conversing with two specialists from the University of Zaragoza (Spain): one in psychology and the other in sociology. These experts provide original data and arguments that enrich both the interpretation and the results of the study, which concludes that the media not only report differently depending on the characteristics of the territory in which they operate, but also that some of them use the information as a tool to indoctrinate society.