Homeland (8 Seasons) Classic A

Short Pill:
A CIA officer, at the top of her field, becomes convinced that a recently rescued American prisoner-of-war was influenced by Al-Qaeda and might be plotting a terrorist attack on the United States. But when her mental state comes into play, everything she says she knows, and every decision she tries to make, gets called into question, making her mission even more impossible. How can the Agency trust someone who should hardly trust herself?