'Vikings: Valhalla' is about the heroic adventures of some of the most famous Vikings of all time, including the legendary explorer Leif Eriksson, his fiery and headstrong sister Freydis Eriksdotter, and the ambitious Nordic prince Harald Sigurdsson, set over a thousand years ago in the early 11th century. As strife between the Vikings and the English royals reach a blood-soaked breaking point, and as the Vikings themselves collide over their clashing Christian and pagan beliefs, these three Vikings embark on an incredible adventure that will take them across oceans and battlefields, from Kattegat to England and beyond, in their quest for survival and triumph. 'Vikings: Valhalla' is all set to premiere on February 25, with all episodes launching at the same time.