Each episode of ``Snipers'' focuses on a particular story of the men and women who fight the solitary war as a sniper. Experts of stealth and stalking, they can kill with a single shot from nearly a mile, or creep within yards of an enemy target remaining virtually invisible. Starting with American snipers in the Revolutionary War and ending with 21st-century snipers and the latest technology at the U.S. Army Sniper School, British Royal Marines and Russian Red Army snipers, the series goes inside the lives of these killers.