Realizing there’s a spy in their midst, the FBI and CIA reluctantly agree to join forces, and launch a joint investigation to ferret out the mole. But they unwittingly put Robert Hanssen in charge of a crucial aspect of the case, enabling him to throw them off the scent as he continues selling secrets to the KGB. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.