Volatile CIA agent Carrie Mathison investigates and ultimately becomes obsessed with returned POW marine Nicholas Brody, who may or may not be an al-Qaeda-trained terrorist. Brody struggles to resume his domestic life with his wife and two children whom he barely knows. Saul tries his best to support his bipolar protégé while pursuing leads of his own and trying to hold his crumbling marriage together.

In a world in which Great Britain has become a fascist state, a masked vigilante known only as “V” conducts guerrilla warfare against the oppressive British government. When V rescues a young woman from the secret police, he finds in her an ally with whom he can continue his fight to free the people of Britain.