(Covers information from Anderson's universe)
"My baby. Please. Please help my baby."
Ma was the matriarch leading a group of survivors. As a possible means to lure in unsuspecting survivors, Ma and her sons would play a looped S.O.S. message pleading for help and detailing wounded survivors at a station called KLKB.
As luck would have it, Alice responded to the S.O.S. and intended to help them before realizing she'd walked into a trap. Ma and her sons mocked her and her son, Eddie tried to rape Alice, despite her warning not to touch her. She kicked Eddie, snapping his neck with a kick. Ma ordered her boys to send Alice to the Cerberuses.
Alice defeated a few of the Cerberuses and managed to escape the pit with the surviving dogs behind her. Jumping out of danger, Alice allowed the dogs to kill Ma and her boys.