Retired SAS Major Joe Slater, together with his partner, Dr Sarah Grainger, and the Russian billionaire, Andreas Kolzaidy, have attracted the attention of the British, American and Russian militaries with their AI-enhanced upgrades for elite soldiers. However, Joe is not satisfied with simply becoming a contractor to the world's military. He and those closest to him have the full AI enhancement, not the standard package they sell to Special Forces teams. His mission is to keep the brilliant Dr Grainger and Andreas safe, but Joe dreams of doing more. When Sarah becomes interested in robotics Joe sees the potential for them to become a force for change in the world ...