Melissa says her daughter, Destoni, is aggressive, violent and a bully. She says the 14-year-old has chased her sister and babysitter with a butcher knife and that she has threatened to shoot her teacher and other students.

TELL DR. PHIL YOUR STORY: Is your teen in crisis?

Out of options for how to handle the teen’s behavior, Melissa turned to Dr. Phil for help.

In the video above, see what happens when a Dr. Phil producer interviews Destoni before the episode taping – and why he says he was “scared” of her and thought she might attack him.

WATCH: 'Inconsistent Parenting Creates The Most Resistant Behavior,' Dr. Phil Tells A Mom

On Monday’s episode, hear what Melissa says about her daughter’s behavior – and hear from Destoni. How does she behave with Dr. Phil? Then, on Tuesday, Destoni comes face to face with a group of her peers. And, will she take Dr. Phil’s help? Check here to see where you can watch.

TELL DR. PHIL YOUR STORY: Have a family drama that needs Dr. Phil's help?

Mom Says Teen Is Violent, Acts Out, Tells Her To 'Shut The Hell Up'