| EPISODES | 86 (10 seasons) |
|---|---|
| ORIGIN | English / United Kingdom |
| AUDIENCE | PG-13 |
| 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. |
