The storm arrives at Seattle, and Katherine, and Nathan fly into the path of the storm. After the pilot of the helicopter is killed, Nathan has them crash land in the city, and they escape the helicopter as it is destroyed in a gas explosion. A medical camp soon sets up in the city, and Katherine discovers that the nanomachines have been eating some of the victims, and takes a sample of the nanomachines from one of the bodies. Katherine, and Nathan take the nanomachines to Miller, who is at the camp, and they examine them. Nathan predicts that a worldwide storm will soon form, and they have to act fast.