leeper Cell is a one-hour drama on the Showtime network that began airing on December 4, 2005. The tagline for the first season was "Friends. Neighbors. Husbands. Terrorists." and the tagline for the second season was "Cities. Suburbs. Airports. Targets." The series was nominated for an Emmy award for Outstanding Miniseries. The eight-episode second season of the series, titled Sleeper Cell: American Terror, premiered on December 10, 2006. Both seasons of Sleeper Cell were originally aired in an unusual fashion, by filming the entire season ahead of time and then airing the episodes on consecutive nights, such that each brand new season was aired for the first time over a period of less than two weeks. In Australia, both seasons originally aired on the Showtime Australia channel in 2006/2007. Re-runs as of 2008 have screened on the showcase channel.

There are currently no definite plans for a continuation of the series. However, Robert Greenblatt, President of Entertainment for Showtime, was reported in July 2007 to have publicly mentioned the possibility of creating a new installment of the series every few years, similar to the structuring of the British television series Prime Suspect, in that there might be an entirely new cast of characters for each season. In this way, the series could become a way to examine the current state of terrorism, and its evolution over time.

Overview from themoviedb.org