Mother created a group of enhanced killers called EVOs to be the next stage in evolution. They soon realize that's not the case when Mother abandons them to face the world alone. As adults, they vow to make Mother pay for her betrayal. The siblings set out to draw out Mother in an elaborate plan filled with massacre, death, and betrayal. Can the EVOs finally get Mother's attention and exact their revenge? Can the police find and stop these EVOs from wreaking any more havoc?