13th Century, Wales and England. To young Gruffyd, life has been unkind. Eking out a meagre living with his father, he has learned very quickly how to look after himself in the hostile borderlands. His father, an archer, has taught him well, and at 17 Gruffyd is a keen and able bowman. Young, loyal and skilled, it’s not long before Gruffyd finds himself following in his father’s footsteps, working as an archer in the bordering castle. But tragedy strikes when his lord commits a devastating deed, and Gruffyd is forced to make a life altering decision.

When Charlemagne the Holy Roman Emperor declares war on the pagans of Denmark, Pomerania and the Baltic lands, he is unaware of the true might of the storm he is about to unleash. Meanwhile, in a small fjord in the north of Norway, a young Norse warrior is about to embark on a journey that will take him far to the south, beyond the land of the Angles and the Franks.

AD 916. In the Orkney Isles, a young woman flees her home to save the life of her unborn child. Eighteen years later, a witch foretells that evil from her past is reaching out again to threaten her son. Outlawed from his home in Iceland, Einar Unnsson is thrown on the mercy of his Uncle, the infamous Jarl Thorfinn 'Skull Cleaver' of Orkney. He joins forces with a Norse-Irish princess and a company of wolfskin-clad warriors to become a player in a deadly game for control of the Irish sea.

Norway, AD 958. The Northern realm is once again at war. The exiled sons of Erik Bloodaxe have returned with the help of the Danes and have slain King Hakon. They now come for Hakon's heir, Jarl Trygvi. Trygvi's wife, Astrid, and young son, Olaf, flee their home with the aid of their household warriors. Pursued by the Bloodaxe brood, the family escapes east, through the dark, forested land of the Swedes and across the treacherous East Sea.

AD 865. The fierce Vikings stormed onto Saxon soil hungry for spoils, conquest, and vengeance for the death of Ragnar Lothbrok. Hundr, a Northman with a dog's name...a crew of battle hardened warriors...and Ivar the Boneless. Amidst the invasion of Saxon England by the sons of Ragnar Lothbrok, Hundr joins a crew of Viking warriors under the command of Einar the Brawler. Hundr fights to forge a warriors reputation under the glare of Ivar and his equally fearsome brothers, but to do that he must battle the Saxons and treachery from within the Viking army itself...