Luc Devreux is now a technical expert who is working with the government with his partner Maggie , who's been through countless hours of training and combat with him, to refine and perfect the Unisol program in an effort to make a new, stronger breed of soldier that is more sophisticated, intelligent, and agile.
All of the new Unisols, which are faster and stronger than their predecessors, are connected through an artificially intelligent computer system called SETH , a Self-Evolving Thought Helix.
When SETH discovers that the Universal Soldier program is scheduled to be shut down because of budget cuts, he takes matters into his own "hands" to protect himself.