Drake is asked to check up on an old friend who may be passing information to the opposition.  He initially refuses the assignment, but decides to take the assignment figuring if there is any wrongdoing, he might be able to mitigate it.

Agent goes missing and M9 isn't sure if he is dead or alive.  Drake is assigned to find out.  What he finds is that it's a lot more complicated than anyone thinks as the opposition has found a way to infiltrate our side through the use of plastic surgery.