Sister Mary Eunice is terrified to discover a dark angel has descended on Briarcliff. Kit makes a bold move to be reunited with Grace.
Suspecting fraud, Neal and Peter investigate a beautiful widow who stands to inherit a massive life insurance policy.
In an episode that features Alex Hunter's return, Peter and his team investigate a series of museum heists targeting rare ancient artifacts.
Peter and Neal attend an FBI conference where someone is trying to steal highly valued defense technology.
Mozzie buys a storage unit that leads him, Neal and Peter on a dangerous treasure hunt, following clues left by a revolutionary spy ring.
The guys are almost able to retrieve the evidence box from the Empire State Building, but their efforts are impeded by Sen. Pratt.
Welcome to Briarcliff Manor, a notorious insane asylum that is home to a deranged serial killer known as Bloody Face.
Peter and Neal look into Sen. Pratt's ties to corrupt cops who framed Neal's father. Their investigation also leads them to a real estate developer.
A murderous Santa wreaks havoc on Briarcliff. Sister Jude faces off with the Devil. Arden has a shocking encounter in the Death Chute.
An exorcist is summoned to Briarcliff to help save a troubled farm boy. Sister Jude's darkest secret is revealed.
Sister Jude digs up dirt on Arden. Later, Kit makes a surprising confession and Bloody Face is unmasked.
A new patient claiming to be Anne Frank exposes Arden's past. Kit learns why Grace was admitted to Briarcliff.
On an exotic remote island, Peter must race to find Neal and Mozzie before a ruthless bounty hunter captures Neal and locks him away for good.
A mysterious little girl is abandoned at Briarcliff. The Monsignor makes a Faustian pact with Dr. Arden. The origin of Bloody Face is revealed.
The Monsignor confronts the Devil. Dr. Arden's experiments reach a shocking conclusion. Dr. Thredson facilitates a surprising reunion for Kit.