'Vikings' season 4B spoilers: Kattegat's king returns to attack Wessex; Jonathan Rhys Meyers as Alfred the Great?

(Facebook/Vikings)Official poster for History's "Vikings"

Ragnar Lothbrok (Travis Fimmel) still has a score to settle when the second half of History's hit historical fiction drama TV series "Vikings" airs later this year. Not much has been known on the warrior king's itinerary, but spoiler reports are hinting that he might be setting his eyes back on Wessex.

For those who missed it, season 3 left with a tragic revelation, where King Ecbert (Linus Roache) ordered his son to massacre Ragnar's people in a settlement provided for them.

The farmer-turned-king kept the secret hidden for the past episodes and even killed someone who threatened to expose it to the public.

Toward the end of the first half of season 4, Ragnar returned from his self-exile following his defeat from his brother, Rollo (Clive Standen). He still hasn't explained yet why he returned from his peaceful vacation, but spoiler reports are saying that the protagonist is eyeing to make King Ecbert pay for the crime he had done against the Viking people. It is thought that he will sail back to the English channel, this time bringing his own sons, Bjorn Ironside (Alexander Ludwig), Ubbe (Jordan Smith), Hvitserk (Marco Ilso), Sigurd Snake-in-the-Eye (David Lindstrom), Ivar the Boneless (Alex Hogh Andersen), and Magnus (Finn Ryan), all of whom are now probably hungry for some action.

Series creator Michael Hirst reportedly said that aside from the young bloods, Ragnar will still seek the help of his friends like Lagertha (Katheryn Winnick) and Floki (Gustaf Skarsgard).

In related news, a report from Movie News Guide squashed the rumors that actor Jonathan Rhys Meyers will be part of the Viking horde. Instead, it is said that he will be one with the English people. In fact, he can actually be Alfred the Great, the one who faced off with Ragnar's son, Ivar, in a great battle between the Anglicans and the Norsemen.

History has yet to announce the exact premiere of "Vikings" season 4B. Watch out for more updates.