Boost was one of the Morlock-mutants whom survived the first slaughter by the Marauders and started calling themselves Gene Nation. Boost was romantically involved with fellow Morlock Tether . They later allied themselves with Mikhail Rasputin whom became leader of the Morlocks. However, when the X-man Storm bested Mikhail in combat, she became their leader and told her Morlock followers, including Boost, that they should leave New York, where they would only be hurt, and go the African nation of Sudan. The mutant D'Gard was put in charge of the group, but Storm remained leader. Boost once more met Storm and other X-men when their camp was attacked by Humanity's Last Stand. After this fight, Boost and Tether had enough from all the fighting and asked ex-X-men at the time, Havok to teleport them away from the mutant camp so they could start their own lives. Nothing has been heard from Boost or Tether from that point on.