Chucky, has been sent to Kent Military Academy after having failed to cope in several foster homes. Shortly after Andy arrives, Tyler is asked to deliver a package to his room. Tyler realizes that the moments of a child’s development contains a Good Guy doll and, excited, takes it to the cellar to open it, only to have Chucky burst free from the package.
Remembering the rule that he can possess the first person who learns his true nature and that he has a new body, Chucky tells Tyler his secret, but just as Chucky is about to possess him, they are interrupted by Cochran who takes the doll away. Andy unsuccessfully tries to warn Tyler about Chucky. At one point, Chucky lures Tyler into playing hide-and-seek in Cochran’s office, where he attempts to possess Tyler again. When the cadets leave, Cochran is suddenly confronted by a knife-wielding Chucky. Clark declares that the school’s annual war games will proceed as planned, with Andy and Shelton on the same team.
However, Chucky secretly replaces the blank paint bullets of the Red team with live ammunition. When the simulation begins, Chucky accosts Tyler. Tyler stabs Chucky with a pocket knife and flees, trying to find Andy. Suddenly, the Red team descends upon the area and obliviously opens fire with their live rounds, with Shelton being killed in the crossfire. Amidst the chaos, Tyler makes a quick getaway, but before giving chase, Chucky tosses a live grenade at the quarreling cadets. Recognizing the danger, Whitehurst bravely leaps on top of the grenade and sacrifices himself to save the others.
With no time to mourn his friend, Andy heads off in pursuit of Chucky, with Kristin close behind. Eventually, the chase leads the group into a fake haunted house at a nearby carnival. Tyler tries to get a security guard to help him, but Chucky kills the guard offscreen and kidnaps Tyler. In the ensuing melee, Chucky shoots Kristin in the leg, leaving Andy to fight Chucky alone. Child’s Play 3 immediately went to production after the success of its predecessor. It was released exactly 9 months after the second movie, which caused pressure to Don Mancini to draft a storyline on such a tight schedule.
He initially wanted to introduce the concept of “multiple Chuckys” in the movie but due to budget constrains, the idea was eventually scrapped. A tie-in novel was later written by Matthew J. Just like Child’s Play 2, this novel had some of the author’s own parts. Play Pals factory, a rat scours for food and chews on Chucky’s remains. Blood then leaks out of the remains and somehow leaks into another doll. Chucky’s death in this book is also different.