Emerald City has a new Unit Manager who has an unusual approach to running things. Keller returns to Emerald City. Dr. Nathan confronts O'Reily about the attack. Meanwhile, McManus returns to Em City as the Unit B manager; Mobay and Busmalis are released from the hole; and the search for Alvarez continues.
Episode number: 4x4 Production Number: 404 Airdate: Wednesday August 02nd, 2000