After the failure of the Sentinels, the U.S. Government decided not to renew the research. However, part of the government secretly continued the research of the Sentinels and have created a new, better, MasterMold. This MasterMold was created using a woman who had nearly died as the design of a new cyborg MasterMold. All memories are supposedly erased from the host of MasterMold, and has been built into a large metalic body, standing ten feet tall.
This MasterMold has most of the weapons as the sentinels, though it does not hunt mutants as much as it controls all the other sentinels. MasterMold still has her human head and most of her face. The cybernetics cover her left eye, and jaw line. The rest of the body is fully machine, with the exception of vital organs that are deep within the metalic armor.
MasterMold's whereabouts are unknown.