The plan to defeat the Invaders was devised by Walter and September. The plan was to send Michael, an empathic Observer child, to the moment in time where scientists first thought it would be a good idea to erase human emotion for rational thought. Michael would be living proof that they did not need to take an action as extreme as erasing emotion—they could have both. This would prevent the creation of emotionless Observers, who would in turn never invade in 2015. Scientists would hopefully create Observers in Michael's image. September, who used his abilities as an Observer, scrambled the plan in Walter's head so that it could not be extracted by Observers antagonistic to the group.