McCall comes closer than ever to being captured when she races to prevent the murder of District Attorney Grafton, the prosecutor seeking to bring her to justice.

Mel's past military expertise proves critical when McCall is hired by District Attorney Grafton to find a sniper on a killing spree, seemingly selecting victims at random. Also, Delilah experiences PTSD when the sniper shootings cause her to relive the trauma of her friend's fatal shooting.