Certainly! Here's the translation of the main plot of "Vikings: Valhalla" into English:

"The main plot of Vikings: Valhalla revolves around the stories of Vikings over a century later. The series depicts the bloody climax of the tense relations between the Vikings, also known as Norsemen or 'Danes', and the native English in England. There are also internal Viking conflicts due to religious beliefs, with clashes between Christianity and paganism.

The narrative begins with the St. Brice's Day massacre in 1002, aiming to conclude with the Battle of Stamford Bridge in 1066, which marks the end of the Viking Age. Key characters include:

Leif Erikson: A brave explorer and leader.Freydís Eiríksdóttir: A strong and decisive woman.Harald Sigurdsson: An influential chieftain.

They embark on a grand journey across seas and battlefields, from Kattegat to England and beyond, fighting for survival and glory."

I hope this provides you with a clear overview of the storyline! If you have any more questions or need further information, feel free to ask.