Jill and the U.S. National Guardsmen begin to recover after receiving the lethargica antidote; but shortly thereafter, the Guardsmen begin to fall ill again with a secondary more deadly infection.
A West Nile-like virus is breaking out in San Francisco, but it's showing some abnormal traits. NorBAC faces budget cuts on the U.S. side; a scientist at the University of Toronto claims to be able to help Owen with his addiction.
NorBAC uses innovative scientific methods to track the source of mutating radiation that is affecting fish on the East Coast of Canada to radioactive fuel rods that were dumped into the Ocean in the 1950s.