Reggie and Sam then go shopping for guns and clothing at a mall. After a firefight with some zombie stock boys, the girls are taken prisoner, but are saved by a rescue team sent by the scientists. Reggie is taken back to their base. Audrey White, a disillusioned scientist, offers to dispose of Sam, whom she diagnosed as having been exposed to the comet due to her developing rash, and to wait for Hector to return. After she fakes euthanizing Sam by injecting her with only a sedative, she kills the other remaining scientist. When Hector returns after an encounter with a zombie child, Audrey briefs him on the situation and then gives herself a lethal injection. Sam and Hector set out to rescue Reggie.