Set after the events of the first part, it seems that the enemies never end. McCall gets a bad news about the murder of his longtime friend, Susan Plummer. Although he is considered as a retired officer, but McCall doesn't bear to hear this thing and be as he where is. He starts to put his plan to take the revenge through an exciting adventure.
With the secret behind his formidable skills out of the bag, all we have is a good guy who is good at things, and a sense of obligation to conjure up a convoluted syndicate of straw men for him to chop down.