It is the Spring of AD43 and a huge fleet carrying over 40,000 Roman soldiers crosses the wild northern sea to seize the mysterious isle of Britannia, for the glory of Rome and their emperor, Claudius. Along with the other warriors who come ashore, Marcus Sulpicius Vepitta and his comrades in the XIIII Gemina Legion soon find themselves pitched headlong into a sequence of murderous battles, fighting to conquer a land that has for so long lain beyond the grasp of one of the greatest empires the world has ever known. Yet, even before the great invasion armada had left the shores of Gaul, Claudius' army had already been shaken to its core by the threat of mass mutiny and Vepitta had unwittingly become embroiled in the affairs of others, as a long simmering quest for retribution finally began. Amidst the unrelenting savagery of total war, Vepitta comes to find his loyalty and honour tested as never before. And, as the beleaguered Britons begin to crumble before the relentless Roman war machine, he soon learns that he has been sucked deep into the schemes of a young Roman noble woman, who yearns for justice - at any cost.