Ballistic: Ecks vs. Sever (2002)
Jonathan Ecks, an FBI agent, realizes that he must join with his lifelong enemy, Agent Sever, a rogue DIA agent with whom he is in mortal combat, in order to defeat a common enemy. That enemy has developed a "micro-device" that can be injected into victims in order to kill them at will. sniper, martial arts, fight, loss of loved one, spy, nanotechnology, secret agent, adversary, agent, one woman army, action hero
ETC.
