Paranoid, pig-headed and argumentative. That's the Sagitarron race as described by Dualla (Kandyse McClure), a Sag herself. Showing clear signs of Mellorak Sickness, a group of Sag refugees stick to fundamentalist beliefs by shunning the booster shots that will prevent both their own deaths and a widespread epidemic. Inside Dogsville, the Galactica hanger deck that houses refugees, the toxic atmosphere turns even more hostile when Dr. Roberts (Bruce Davison) fails to save a series of patients who have unwillingly been given shots. Bucking against widespread hatred of the Sag minority, Helo (Tahmoh Penikett) discovers a long-standing pattern of suspicious Sag deaths. When Dualla catches the disease, her dramatically worsening condition confirms Helo's worst fears and he must fight to get her into the care of Doc Cottle (Donnelly Rhodes).
Meanwhile, Laura Roslin (Mary McDonnell) intends to charge Baltar (James Callis) with high crimes and treason. Zarek (Richard Hatch) warns her that the trial will trigger a hurricane of trouble throughout the fleet. While Baltar stews in his cell playing mind games with Number Six (Tricia Helfer), Caprica Six begins to experience similar psychic disturbances as a phantom Baltar whispers his own poisonous advice.