Become a Youtube Partner Quiz Group: ?ref=48040 The appearance of the Viking fleet causes panic among the population of Paris. Become a Youtube Partner Quiz Group: ?ref=48040 Original airdate: April 2, 2015 The appearance of the Viking fleet causes panic . Dont miss a brand new episode of Vikings on Thursday, April 2nd at 10/9c on HISTORY. Subscribe for more Vikings: . Become a Youtube Partner Quiz Group: ?ref=48040 Become a Youtube Partner Quiz Group: ?ref=48040 .