Chinasa Ogbuagu

German agents question Olivia when Mr. Jones returns and a lethal toxin is released that causes victims to die without faces as their orifices suddenly and mysteriously close up.

After shifty FBI Agent Loeb orchestrated Mr. Jones's otherworldly escape from a German prison and Olivia's alarming abduction, indications of a larger threat begin to emerge.

Bull confronts his guilt over closing his psychiatric practice to start TAC when his former patient, a young woman who is a clinical sociopath, goes on trial for killing her brother. When Bull and Benny’s client has no memory of the crime due to her mental condition, they enter a “Not Guilty by Reason of Insanity” plea and aim to seat jurors that are sympathetic to mental illness.

When Marine Sgt. Nicholas Brody returns home following eight years in captivity, CIA agent Carrie Mathison thinks he has turned and is connected to a terror plot to be carried out on American soil, so she engages him in a dangerous game of cat and mouse that puts America's national security at risk. Later on, Carrie gets a promotion and returns to the front lines overseas. She is assigned to one of the CIA's most volatile and dangerous stations in the Middle East, where she is in the heart of battle in the war on terror. Years later, after being disillusioned and placing herself in a self-imposed exile in Berlin, Carrie becomes estranged from the CIA, eventually returning stateside where she works for a foundation providing aid to Muslims living in America.

Ryan Hardy, Agent Mike Weston and FBI Specialist Debra Parker, who is brought in to lead the investigation into Joe Carroll and his followers, dive deeper into the history of Carroll's psyche. To do so, they enlist the help of Carroll's ex-wife, and Hardy's former love, Claire Matthews. Meanwhile, Emma (series star Valorie Curry), Jacob (series star Nico Tortorella) and Paul (series star Adan Canto) keep Claire's son Joey at a house in the country as they prepare for their next move.