When teen Jake Wheeler buys a vintage doll at a yard sale, his young life changes forever.

As the body count in Hackensack continues to rise, Lexy and Junior's relationship becomes strained, while Jake and his friends set a risky trap for Chucky that could have dire consequences if it backfires.

As Hackensack reels from Chucky's relentless—but secret—reign of terror, the Mayor tries to allay fears by cluelessly arresting an innocent suspect. Meanwhile, the kids desperately try to figure out Chucky's mysterious endgame — before it's too late.

Scores old and new will be settled, and sparks will fly,as Chucky’s diabolical plan comes to fruition at a particularly dangerous—and public—venue.

No child is left behind when Chucky manages to insinuate himself into the White House and find a new "friend 'til the end" in the President's lonely young son, Henry. Meanwhile, Jake and Devon help Lexy for her missing sister Caroline.