Erina is an KGB Black Ops Assassin who retires after she falls pregnant by mistake. Knowing the consequences of that action - she retires and disappears into the US to bring up her son. Her last mission was a bust anyway. However the people she was originally after have surfaced in the US and are being watched by the FBI. One morning , her world is tragically turned upside down when her son is killed in a hit and run, by the very man she had been searching for a decade earlier. However his pictures are snapped by her son's best friend and after the funeral she sets out to find him and his gang and make sure they wish that they had never been born.

They made the ultimate mistake, the pissed off the wrong mother.

However she leaves something behind when she leaves and it is found by a friend of hers who works for Military Intelligence. He is shocked to discover that the woman he believed to be just an American housewife isn't. He sets out to try and find her before she causes a war on US soil. He alerts the FBI and the race is on to find her.