When a computer sting uncovers the possible mole in the CIA arms smuggling ring, Elizabeth's questioning of the suspect makes her think that a larger, more dangerous force is behind the operation. Also, Henry worries that the doomsday cult is drugging his embedded operative, and Elizabeth and her State Department staff come up with an unorthodox approach to solving black rhino poaching in Namibia. Enrico Colantoni guest stars.
Interesting to see the solution presented for protecting the black rhino. This is an interesting example of the complexity of the world and both how and why science can be used as a tool to move policy.