Like his older self, Harold is nerdy and awkward but still rather intelligent. He studies and takes being a ninja seriously to the point of believing he should be the only one in the daycare.
After saving all toons, Chip and Dale find out about a war between 3D and 2D toons, and that Gorefield is trying to kill everyone, now they must team up with Peter Pan to stop him, it's gonna be a full war.