Innovating the only way they know how: accidentally.
A pig is sticking boxes together. Then he goes back and suddenly, he accidentally step on the wrench and fall down a cliff into a big box of tools. Then a robot comes out of the box. The three other pigs next to the box start to surprise. But then the robot accidentally fall off while walking. So the pigs have an idea: The robot will help them with their work. So the robot has helped them in whacking blocks (which a huge hammer), screwing nails (with the screw which is one of the robot's hand), and even using himself to make a bridge for the pigs to go through. After passing the bridge, the three pigs have an another idea. So they take out the glue, stick the boxes together and make an another robot as the robot's friend!