Finding your next obsession
Finding your next obsession

It's a fine line between safety and terror. Meet the rulers.
Tense drama series about the different challenges faced by the British Security Service as they work against the clock to safeguard the nation. The title is a popular colloquialism for spies, and the series follows the work of a group of MI5 officers based at the service's Thames House headquarters, in a highly secure suite of offices known as The Grid.
LUXEN Decision Guide
A tension-led series where questions, pressure, investigation, or shifting trust can keep the story moving from episode to episode.
Best fit
Who it is for
Best suited to viewers who want an ongoing hook and a reason to keep watching the next episode.
Commitment
Long-form commitment · 10 seasons
Use the season and episode count to judge how much time you want to invest.
Start here
Read the synopsis.
Start with the trailer and first-season premise, then decide whether you want to invest in the longer arc.
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The series

6 episodes
2002

10 episodes
2003

10 episodes
2004

10 episodes
2005

10 episodes
2006

10 episodes
2007

8 episodes
2008

8 episodes
2009

8 episodes
2010

6 episodes
2011
Cast
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