Mr. Simonet gives his students a year-long assignment: "Think of an idea to change our world - and put it into ACTION!" He creates this assignment to prove to his students that, despite their age and current situation, they can indeed change the world. Mr. Simonet inspires his students by suggesting that anything is possible if you put your mind to it.

Once the toys realize that they will have to go to Al's Toy Barn to save Woody, they devise a plan to cross the road(s) safely.

In this clip, Charlie tries to identify a crimal via the car keys in her purse. Car keys use a mathematical algorithm to send a different n digit number each time the button is pressed, which the locking mechanism can identify as right or wrong.

In this clip, Charlie suggests using an evolutionary algorithm to search for abnormal behavior after a murder occurs in a video game with a real-life component. Evolutionary algorithms imitate the biological process of natural selection to find optimal solutions.

In this clip, Charlie is trying to crack a code a man has left him.