After the events of the 3rd installment, Woody and Scrat have to deal with a new evil force ran by a mean and bossy monkey called Monke, Who is the ruler of Hell, it's up to Woody and Scrat to save Splinter, Knothead, Rockruff and Baby Scrat by defeating Monke's minions and himself in order to go back to their universe and collect all pieces to unlock a door which sends them to food heaven, they lived peacefully alongside Woody's Nephews, Scrat's Son and their Rock Type Dog.
