Dave can't help but notice that his three little Chipmunks are growing up and becoming independent. Anxious to spend more time with them, he only ends up suffocating them. In order to get Dave off their backs, the Chipmunks decide to find him a new girlfriend.

When Dave refuses to let Alvin get a dangerous toy sports car, Alvin secretly convinces Simon to build him an exact replica of the car. Will Alvin be able to keep this secret from Dave? Or will it turn out that the toy car is TOO FAST – TOO FURIOUS?!