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.

Britannia, 58 AD. Fergus MacAmergin is a man out of place. An Irish Celt, he passes as a Gaul and rides with the Roman cavalry, affirming Nero's control over the province. Fergus dreams of escaping the fetters ofhis birth and living freely as a citizen of Rome. When Fergus's commander makes a battlefield error, Fergus is blamed. He and his men are given a thankless task: a quest that spells danger, despair, and near-certain death. The mission: to find the Holy Lance, the spear that wounded Christ on the Cross.

Anno Domini 1040. Christianity has swept unstoppably across Scandinavia, leaving few enclaves of the old ways clinging on to their fading world as King Olof of Sweden works to convert his people. A young warrior, Halfdan, has witnessed the ‘mercy' of the Christian lords, watched his people attacked, his village burned and the Odin stone toppled as heretical. Watched his father cut down by an ambitious Christian jarl and his zealous priest. Among the ashes of his world, he vowed an oath of vengeance before all the gods.

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...

A young Saxon boy and his mother are captured in a Viking raid. Fate transforms his destiny and, thanks to an ageing one-armed warrior, he wins his freedom and becomes one with the Vikings. Clan rivalries force Dragonheart and his new Jarl to sail the seas searching for a new home. Landing on the Isle of Man, they must fight for their very survival with enemies old and new seeking their destruction.