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.