When Katherine's son is mutilated and killed in the exact same manner as her brother, she becomes convinced that the perpetrator is the same man. She goes to the authorities, but even with new evidence, the killer continues to elude police.
Her search for answers puts her in contact with Jon, who presents damning evidence that the man who killed her son and brother and the man responsible for his daughter’s suicide are part of a network of pedophiles called The Convent. Unwilling to trust a system that has failed her twice, she bypasses the police and vows to help Jon stop The Convent before they hurt more children.
Together, Katherine and Jon stalk and gun down members of the group. But when their thirst for retribution lands them on the FBI's Most Wanted list, they must stay one step ahead of a tenacious lawman out to stop them. With the help of a few sympathizers they manage to outsmart the FBI but soon they find out that a member of The Convent is on their trail and looking for a little revenge of his own. If the FBI agent doesn’t catch Katherine and Jon, they stand the chance of losing their lives to one of the very men they are hunting.