Like her mother, whom she hasn't seen in 15 years, Sam works as an assassin. On her next assignment, she takes pity on an eight-year-old girl and decides to protect her at all costs, even if it means going up against her own boss. When Sam is hunted by an army of thugs, including the head of the criminal group whose son she recently killed, her mother and her former partners suddenly come to her aid, always ready to give her enemies a "powder cocktail".