4400 centers on the return of 4400 people who, previously presumed dead or reported missing, reappear on Earth. Though they have not aged physically, some of them seem to have deeper alterations ranging from superhuman strength to an unexplained healing touch. A government agency is formed to track the 4400 people after one of them commits a murder.

V is an American science fiction television series that ran for two seasons on ABC, from November 3, 2009 to March 15, 2011. A remake of the 1983 miniseries created by Kenneth Johnson, the new series chronicles the arrival on Earth of a technologically advanced alien species which ostensibly comes in peace, but actually has sinister motives. V stars Morena Baccarin, Lourdes Benedicto, Morris Chestnut, Joel Gretsch, Logan Huffman, Charles Mesure, Elizabeth Mitchell, Laura Vandervoort and Scott Wolf, and was executive produced by Scott Rosenbaum, Yves Simoneau, Scott Peters, and Jace Hall. The series was produced by The Scott Peters Company, HDFilms and Warner Bros. Television.