In three minutes, assassin will gun down the person you are sworn to protect. But how do you pick them out of the press of bodies? To add to the confusion, there are more agents like yourself, ready to react at a moment's notice - but how will you deduce who they are? Anxious faces look through the crowd, desperate to determine who is friend or foe. 3...Time is running out, and every gun has a bullet in the chamber. 2...There's no time left. 1...Whisper a prayer and take aim.