Vikings Season 5 premiere Date and Comic-Con trailer HISTORY‘s hit drama series Vikings returns on Wednesday, November 29 at 9 PM ET/PT with a two-hour season five premiere, it was announced today at the San Diego Comic-Con. An exclusive trailer for the new season was unveiled during the Vikings cast panel this evening at Comic-Con, and you can now watch the trailer below! Across all platforms, the last season of Vikings averaged 7.8 million viewers per episode.