A commuter walks past a subway car which is advertising the History channel's show "Vikings" at Times Square Station in the Manhattan borough of New York February 16, 2014. Reuters/Carlo Allegri

“Vikings” season 4 episode 15 titled “All His Angels” will be one of the most intriguing episodes of the entire season. The father-son duo, Ragnar (Travis Fimmel) and Ivar (Alex Høgh Andersen), will be seen bonding like never before.

Ragnar will be delivered to King Aella

The promo for the next episode “All His Angels” shows that Ragnar will be delivered to King Aelle (Jennie Jacques), who is not at all fond of him. There Ragnar will get brutalised in a pretty horrible way.

Will Ragnar die?

Ragnar has already planned his death. The fact that he asks King Ecbert (Linus Roache) to hand him over to King Aelle shows that he is planning his death. Furthermore, going by the history of Vikings, Ragnar is bound to die as it is only after that will Ivar emerge as the greatest Viking.

Read More: ‘Vikings’ season 4: Alex Høgh Andersen reveals how Ivar will become the greatest

Ragnar and Ivar will bond like never before

In “Vikings” season 4 episode 15, Ragnar and Ivar will bond like never before. The father and son will finally achieve a new level of understanding with each other. They will strategise to fight against the Saxons.

Ivar will finally get the time and love that he longed for from his father. Unfortunately, it will not last long. Ragnar has already planned his death and he wants to leave the power in Ivar’s hands. He will spend more time with him to prepare him for the future events. Perhaps, the father-son duo will also spend some time bonding and sharing memories.

Ivar and brothers will avenge and King Aelle will die

The story that will follow Ragnar’s death will be of revenge. His sons including Ivar will hunt for King Aelle, who would be responsible for Ragnar’s death. They will find him and kill him if the plot of the show follows history.

“Vikings” season 4 episode 15 will be aired on Dec. 28 at 9PM ET. The season will air in Australia on SBS One from Jan. 11 at 8:30PM.

Watch the promo of “Vikings” season 4 episode 15 below