An MI5 officer's attempts to foil a possible terrorist plot are undermined by bureaucracy and moral dilemmas. Will he make the world a safer place or be complicit in making a tense situation even worse?

Top Cast

David OyelowoEdward Ekubo

Stephen Campbell MooreTony Coveney

Sebastian ArmestoGareth

Monica DolanJudith

Paul RitterThomas

Arsher AliWaleed Ahmed

Nasser MemarziaKhalil

Shonn Gregory