A tormented father witnesses his young son die when caught in a gang's crossfire on Christmas Eve. While recovering from a wound that costs him his voice, he makes vengeance his life's mission and embarks on a punishing training regimen in order to avenge his son's death.
Alex, an assassin-for-hire, finds that he's become a target after he refuses to complete a job for a dangerous criminal organization. With the crime syndicate and FBI in hot pursuit, Alex has the skills to stay ahead, except for one thing: he is struggling with severe memory loss, affecting his every move. Alex must question his every action and whom he can ultimately trust.