This guide provides a breakdown of , the first episode of the seventh series of the British spy drama MI-5 (originally titled Spooks in the UK), as featured on IMDb . Episode Overview: "On the Brink"
Fresh from eight years in a Russian prison, Lucas attempts to reintegrate into Section D while being used by Harry to investigate the "Sugarhorse" sleeper agent network . [S7E1] On the Brink
While "On the Brink" is the specific title for this episode, the phrase is common in recent media guides: This guide provides a breakdown of , the