If Thoughts Could Kill

Synopsis
When an agent from the Munitions department starts shooting up the Investigative Services department, Lee stops him and winds up in hospital.

Memorable Quotes
Lester Duck: Success comes one step at a time.

Comments
This is only the third episode, and already both of Billy's subordinates have been shown to have been brainwashed and turned against the agency. In both cases an internal affairs investigator knew of it, and doesn't seem to have taken any action.