Upon discovering that the fleet can only be recalled by the Highbreed Supreme, Ben, Gwen, and Kevin head to their homeworld to confront him. The Highbreed Supreme refuses to recall the fleet, and Azmuth reveals that the Highbreeds' obsession with genetic purity has resulted in sterility in their species: they intend to cleanse the galaxy of all life in retaliation. Using the Omnitrix, Ben sends out an energy wave that reprograms the DNA of every Highbreed in the galaxy, fusing their DNA with random species from the Omnitrix to repair their genetic damage. Reinrassig III returns to convince his race that their new impurity is not undesirable, and the fleet is recalled. Max Tennyson decides to become the mentor of all the plumbers kids Ben's recruited. Ben and Julie almost kiss, but decide against it. Instead, Ben makes it up to her by promising to walk her to school. Paradox takes Azmuth home, and Kevin takes Gwen to the auto show. As a side effect of reprogramming the Highbreed genetic damage, Ben finds the Omnitrix reprogrammed with ten new aliens.Ben then turns into an unkown alien with spiked shoulders, ending the episode.