The series finale features highlights from all nine seasons.

A 14-year-old bully gets help from a Douglas County, Ga. deputy.

A 15-year-old gang member faces angry inmates and fights back, triggering chaos in the cellblock and forcing a lockdown.

Angry sisters meet a relative in an Oklahoma jail.

A 14-year-old bully who was caught on camera violently attacking his mother gets a taste of his own medicine during a long overnight stay in South Carolina's Richland Jail.

A 16-year-old who has run away four times refuses to back down to inmates or deputies at the Douglas County Jail in Georgia, where she discovers an unlikely ally behind bars.

Two baby-faced brothers, ages 12 and 13, are brought to Dougherty County Jail in Georgia in hopes of curing them of their penchant to start fires, steal guns and assault their mother.

Weapons are found on an 18-year-old student, who claims she had no idea she was carrying them and that they belong to a friend. In hopes of a clean slate, she attends a youth intervention program at the Chester County Jail in South Carolina.

A jail in Portsmouth, Va., is toured by a 16-year-old gangbanger, who physically challenges officers and inmates at nearly every step.

An unpredictable deputy at the Floyd County Sheriff's Office in Georgia bullies, coaxes and comforts to help create new futures for a carjacker, a shoplifting party girl, a violent fighter and a granny-robbing thief.

In the Season 9 premiere, a mother sends her extremely aggressive 15-year-old son on a tour of the Fulton County Jail in Georgia following an incident in which she had to use a Taser and pepper spray in order to defend herself from his attacks.