Three women in the D.C. area come to the attention of Molly and her team when an artist beheads her husband, an oil billionaire's wife attacks a bank teller, and an attorney mutates and explodes on a street corner. The investigations reveal that all three were infected by the alien signal from a startling and unsettling source. In other events, Molly meets with the new national security advisor, who will oversee the Threshold project.