When the Strategic Response Unit arrives, the rules change. The bad guy's caught - he just doesn't know it yet. The SRU, inspired by Toronto's Emergency Task Force, is a handpicked team of elite cops. High risk is their business and these men and women do it all: rescue hostages, bust gangs, defuse bombs. Talk down suicidal teens. Protect the Pope. They handle state-of-the-art weapons - sniper rifles, flash-bang grenades, tasers. They climb the sides of buildings. See through walls.