In Sleeper Cell: American Terror, the Muslim undercover FBI agent, Darwyn Al-Sayeed (Michael Ealy), discovers that another terrorist cell in Southern California is planning a catastrophic attack that will be more successful than the last attempt.
Meanwhile, Farik (Oded Fehr) escapes out of the country and directs another terrorist operation, beginning a parallel storyline between Southern California and the Middle East.
American Terror deepens our understanding of the religious and philosophical differences between undercover FBI agent Darwyn and Farik, the radical Islamic terrorist with connections to Al-Qaeda who continues to mastermind attacks on American soil.
As American Terror begins, Farik is enduring brutal torture at the hands of his American captors while Darwyn, still undercover, is pretending to lead a new sleeper cell consisting of a former Latino gang member (Kevin Alejandro) who became an extremist in prison; a closeted gay Iraqi ex-patriot (Omid Abtahi) raised in London; and a Dutch nanny (Thekla Rueten) with personal reasons for hating America.
While Farik's former right-hand-man Ilija (Henri Lubatti) struggles in vain to return to a quiet, normal life, American Terror takes all of its characters into darker, more dangerous territory, and heightened realism gives the series even greater emotional impact as unexpected tragedies befall several supporting characters.
While Ealy and Fehr continue to anchor the series with their finely nuanced performances, these episodes ultimately lead to a powerful finale that, in many respects, returns Darwyn to where he began - with potentially greater threats looming in his future.
Season 2 originally aired on M-Net from 23 September to 25 November, 2007, on Sundays after the 8pm movie. New episodes broadcast weekly, although the show went on a two-week hiatus after Episode 2 to accommodate Rugby World Cup coverage.