Bad Kids of Crestview Academy

Siouxsie Hess, a goth sophomore at Crestview Academy, seeks to join Saturday detention with the senior class. She shows her rebellious attitude by vandalizing Headmaster Nash's car and tries to find a way into detention. Ben, known as 'The Naked Wizard', promises to help her get in.

Siouxsie is directed by Nash to attend Saturday detention. Dr. Knight is responsible for the detention process, and Siouxsie is among several students serving their punishment. Tension arises as they prepare to spend timelocked inside the school.

The students are taken to the library, where attempts to access the school’s locked doors fail using various passcodes. Max, the janitor, retrieves a list of codes, but trouble persists, locking everyone inside and escalating the tension.

Siouxsie secretly follows Max, steals the passcode sheet, and uses a stun gun to incapacitate Dr. Knight. She then accesses a computer in the lecture hall to upload a virus, aiming to uncover secrets hidden within the school's systems.

Launching the virus triggers a security shutdown, trapping everyone inside as doors and gates lock automatically. The students realize they are now prisoners and scramble to find a way out amid increasing chaos.

While the students search for a way to escape, Brian unexpectedly becomes ill after viewing videos, and he vomits blood and stomach contents, dying suddenly. The virus’s effects become deadly as it begins to take lives.

Siouxsie observes insect infestations entering through the garage door and sneaks back to check on Dr. Knight, who has been trapped and decapitated. She begins to piece together the sinister events linked to the school’s mysterious happenings.

While seeking escape methods, Sara is accidentally impaled and killed by a powered-up power drill during a struggle over a welding torch. Her death marks the escalating danger within the school.

Blaine reveals his motive linked to his sister’s murder and admits to killing Alison and poisoning Brian. He frames Siouxsie for the murders, leading to a heated fight, which results in Blaine trying to kill her with a car while Faith is tied up and killed.

After breaking free, Siouxsie fights her way through the chaos, rescuing a hostage and stealing a vehicle to escape. She ultimately crashes the car outside the school, seeking safety from her attackers.

A SWAT team arrives as Siouxsie sets a makeshift flamethrower, confronting her pursuers and engaging in a final deadly confrontation. The team fends off the attackers amid scenes of destruction and chaos.

In a post-credits scene, Nash and Ethel shoot a man multiple times, debating whether he was involved in the school's sinister plans, implying that the danger may not be fully over and leaving open the possibility of future conflicts.