Prince Amleth is on the verge of becoming a man when his father is brutally murdered by his uncle, who kidnaps the boy's mother. Two decades later, Amleth is now a Viking who's on a mission to save his mother, kill his uncle and avenge his father.

When the head of a criminal organisation, Finn Wallace is assassinated, the sudden power vacuum his death creates threatens the fragile peace between the intricate web of gangs operating on the streets of the city. Now it’s up to the grieving, volatile and impulsive Sean Wallace to restore control and find those responsible for killing his father.