105 A.D. King Decebal of Dacia stubbornly defends the freedom of his people and continues to defy the rule of the Roman Empire. Emperor Trajan marches north again to invade Dacia with the largest army in the history of Rome. Their legendary personal and military conflicts reach a dramatic climax beneath the walls of Sarmizegetusa, the holy city of Dacia and the most formidable mountain fortress of the ancient world.

Decebal Defiant concludes the narrative of Decebal and Trajan, towering historical figures and military masterminds of their age. Their story is an epic clash of cultures, political intrigues, assassination attempts, betrayal, and a fierce struggle for power and survival. The outcome of the Roman – Dacian wars profoundly shaped the futures of both Dacia and Rome.