The Battle of Repton is an important battle in the Vikings series. The battle opposes the Great Heathen Army to the Mercian and Wessex army, which is led by Aethelwulf. The battle results in a overwhelming victory for the Norsemen, who were able to trap the outnumbered Saxon forces and inflict them considerable casualties. The battle left Wessex completely opened and free for the Vikings to raid and conquer.
Prior to the battle, Ivar suggest using the environment to their advantage and attacking the English in division as opposed to shieldwall to shieldwall. Bjorn reluctantly accepts to use Ivar as his strategist.
Setting the trap
As the English approach the Norse vanguard, the Norsemen retreat. At the same time, arrows are shot from the nearby woods by Vikings led by Bjorn. As the English form a shieldwall and move towards the woods, the vanguard once more appears in view of the English. Aethelwulf and his army moves to engage them, but the vanguard once more retreats as a new volley of arrows hits the English. Frustrated, Aethelwulf orders his men to attack the beached Norse fleet. Unknown to him, this is what Ivar has predicted him to do. As the English march towards the Viking base, they move through a tight valley. Suddenly, Viking archers attack them from both sides, forcing the army forward, only to be confronted by a massive shieldwall, blocking their path.
After being trapped by the Viking archers and being confronted to a huge Viking shieldwall, the Saxon forces charge towards it under Aethelwulf's command. The two forces collide into each other, while the Viking archers continue to take their toll of the Saxon army. Aethelwulf bravely strikes through the Viking ranks but he is pushed off his horse and has to fight on foot in a very muddy field already filled with hundreds of bodies of Mercian and Wessex men. Aethelwulf is practically knocked unconscious and as he recovers, he sees the butchery of his men taking place. A horn signals the arrival of the Viking rearguard under Ivar's command, which feinted the English earlier. Realizing the fate of the battle was all but decided, Aethelwulf commands his remaining men to flee for their lives, which they do, the ones left behind being massacred by the Vikings, although some of the stragglers are merely taunted and allowed to run away. However, the Vikings decide not to pursue them and they instead cheer in joy after this complete rout of the Saxon army. Ragnar's sons all cheer ecstatically, except from Bjorn, who, being rather clear-sighted, understands that this victory is not completely definitive.
The result is a decisive victory for the Vikings who have all their time and no opponent in their way to rampage parts of Mercia and attack Winchester, Ecbert's capital city. The Saxons are utterly defeated, taking heavy casualties, with up to half of the army annihilated and the remaining troops scattered. The result was that Wessex and Mercia had no standing army left in order to resist the Norse invaders, until Bishop Heahmund organized his own troops and took up the fight.