With an army of middles schoolers protecting the school with stun batons, the Greendale Seven plans an elaborate heist to covertly rescue Dean Pelton during Chang's birthday party. The night of the party, the plan at first goes smoothly until Chang becomes aware of it and captures them before they can escape with the Dean. He imprisons them and reveals his plan to set off explosives to burn all school records of his misdeeds in the records room. A remote sensor will set it off after he finishes a solo on his keytar. With the help of the Greendale Air Conditioning Repair School, the study group escapes and Troy and Abed make it in time to diffuse the bomb.
Chang with his little Basterds.
Chang heads to the records and directs a guard to attack Jeff. He overpowers the kid and takes his stun baton from him. Chang then arms himself with a double sided stun baton and is about to engage Jeff in battle when they are interrupted by school board members Carl Bladt and Richie Countee. They present to everyone the real Dean and his replacement Faux-by and demand an explanation from Chang. With conclusive evidence of his crimes in front of him, Chang distracts everyone and makes his escape.
In real life the Stun baton is a security device manufactured by Stun Master. Known for it's power and extended reach, it's an entry level stun device capable of generating 300,000 volts. Metal plates running down the sides will also deliver a shock when touched preventing an assailant from grabbing it and taking it away. It has a rubber handle, is 16 inches in length and is powered by two 9-volt Energizer EverReady Alkaline batteries (not included). It retails for around $50.