Hundreds of years pass, and individuals become "dumber and dumber." When Joe finally wakes up 500 years later, he finds an incredibly different world-and he is the smartest person alive. Joe's first thoughts are to find headquarters and to find out what has went wrong. Although, once he sees a newspaper that reads 500 years later into the future, he realizes he is all alone-until he remembers Rita. Joe seeks out a search to find Rita and is later happily reunited when he finds her back to her old ways. Although Rita is not quite that intelligent herself-she still fears for the boss she once works for-until Joe reminds her that he is dead-along with everyone else they knew...500 years ago.
Joe comes across several new characters throughout the movie, trying to befriend others and hope they have a way for him to get home. Since it is later in the future, Joe figures that perhaps time travel has been invented, so he and Rita set out to find a time machine that a friend tells them about. Throughout the adventure, Joe is in jail, but easily escapes, and even becomes the president's right-hand man. He must learn how to solve current problems that the Earth has such as the dust bowl, drought and helping others learn simple every-day tasks. 500 years later, the people of America are incredibly unintelligent and it is up to Joe to try to save Earth and all of its poor idiots.