The action takes place in the future, when Ben is already an adult man trying to resist a huge army of aliens aiming to conquer the planet. Gwen is the President during this period of time, she is incredibly adept at coping with important duties, but the invasion of an extraterrestrial civilization greatly confuses her. So that she, along with the government and military forces, could not resist the enemy forces, they could not, the enemy was too difficult and without the help of a young and incredibly agile, energetic Ben, it would hardly be possible to cope here. Ben's life in the future did not work out much, he practically did not communicate with his family, was offended by many things and tried to hide all unpleasant resentments. When Gwen turned to him for help, he thought he could cope with the alien invaders, but in fact it turned out to be much more complicated. He has no choice but to go back in time and ask young Ben to help him overcome a difficult problem, or the world will soon simply perish under the onslaught of cruel invaders.