A disillusioned special forces operative who's almost given up on the world...and the brilliant weapons scientist who refuses to let him. Battle-weary SAS officer Garrick no longer cares if he lives or dies. He's tracking aliens, intent on vengeance. Instead he finds a feisty bio-weapons engineer in mortal danger. Protecting the research scientist while escorting her to safety wasn't in Garrick's plans, but his sense of duty won't let him leave her...