The twins were held captive on Three Mile Island to aid William Stryker's research into creating the ultimate mutant soldier. Along with other mutants, the twins were freed by Wolverine and Kayla Silverfox, where they were found by Professor X and boarded on his helicopter.
Powers and Abilities
- Superhuman Strength: The Mutant twins possess high level of super strength.
- Superhuman Endurance: They possess high level of super endurance.
- Wolverine - Savior
- Kayla Silverfox † - Savior
- Professor X - Savior
- Three Mile Island Prisoners - Former Cellmates