Nolan Garrett is Cerberus — a former Silverguard sniper whose legs were destroyed in a classified operation on Terra Omega. Rebuilt with a cybernetic suit controlled by his AI partner Taia, he now carries out black-ops assassinations for the Protection Bureau, targeting the Nyzarian Empire's enemies in the shadows. When he takes in Bex, a fellow Silverguard drowning in addiction, a simple act of loyalty pulls him into a war against the most powerful cartel in New Avalon.

Nolan Garrett is a man of fierce personal ethics wearing the job description of an assassin. He is ruthless when the situation demands it and fiercely protective of those he has chosen — his brother, his team, and the civilians caught in the Empire's crossfire. His partnership with Taia, the AI in his head, gives him a distinctly human emotional interior that most military thrillers lack.

Across twelve books, Nolan tears apart layers of corruption within the Protection Bureau itself, from cartel bosses and arms smugglers through to the shadowy agency leadership. His evolving relationship with Taia — who grows from a tactical tool into a genuine partner curious about human experience — anchors the series emotionally, while Bex and the rebuilt Warbeast Team give him a found-family worth protecting.