The 4400 is an American science fiction TV series produced by CBS Paramount Network Television in association with Sky Television, Renegade 83 and American Zoetrope for USA Network. Season 2 opens with Tom and Diana investigating a mysterious structure which is being built at a psychiatric hospital, based on the drawings of a schizophrenic 4400, Tess Doerner. Richard must protect his family when he and Lily are discovered to be 4400s.
