When Humanity's Last Stand attacked the Gene Nationals, Storm and the X-Men arrived to help. Unfortunately, so did Havok's Brotherhood who offered the Gene Nationals protection against Humanity's Last Stand. Humanity's Last Stand were eventually defeated, and Tether (along with fellow Gene National Boost) sought to leave, helping the Brotherhood escape in return for being dropped off at an unrevealed place of their choosing.
Powers and Abilities
None, Tether is a depowered mutant.