The gripping true story of an undercover police tactical unit, utilizing advanced surveillance techniques, who are tasked with dismantling violent commercial business robbery crews, who suddenly find themselves deeply immersed in a high risk surveillance of a group of serial killers who use a sniper hidden in a specially modified vehicle to shoot and kill armored truck couriers. After killing the courier, they would then steal the contents of the armored truck. In an around the clock surveillance, which lasted over three months with many twists and turns, this elite team of undercover officers and their federal partners (ATF/FBI) were able to either arrest or kill these criminals when they were just moments away from trying to kill another innocent armored truck courier.