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MI-5 poster

MI-5 (2002)

Action · Crime · Drama

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.

IMDb rating
8.3 (20,381 votes)
Seasons
10
Streaming (US)
Amazon Prime Video · Peacock · Britbox Apple TV Channel · Philo · BritBox · BritBox Amazon Channel · The Roku Channel · Pluto TV · Tubi TV
Language
EN
Type
TV series
Browse shows by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Aug 19, 2026 · 10 seasons indexed

Cast

Seasons

Season 1 (2002)

7.67 avg 6 episodes 7.2 → 8.3 51 min avg

Ep 1: 7.2 · 773 votesEp 2: 7.9 · 598 votesEp 3: 7.4 · 494 votesEp 4: 7.6 · 498 votesEp 5: 7.6 · 441 votesEp 6: 8.3 · 487 votes
Season 1 episodes - IMDb ratings
#TitleRatingVotes
1Thou Shalt Not Kill7.2773
2Looking After Our Own7.9598
3One Last Dance7.4494
4Traitor's Gate7.6498
5The Rose Bed Memoirs7.6441
6The Lesser of Two Evils8.3487

Season 2 (2003)

7.83 avg 10 episodes 7.5 → 8.5 52 min avg

Ep 1: 7.5 · 434 votesEp 2: 8.1 · 424 votesEp 3: 7.5 · 388 votesEp 4: 7.6 · 378 votesEp 5: 8.6 · 528 votesEp 6: 7.6 · 382 votesEp 7: 7.6 · 365 votesEp 8: 7.6 · 356 votesEp 9: 7.7 · 348 votesEp 10: 8.5 · 421 votes
Season 2 episodes - IMDb ratings
#TitleRatingVotes
1Legitimate Targets7.5434
2Nest of Angels8.1424
3Spiders7.5388
4Blood & Money7.6378
5I Spy Apocalypse8.6528
6Without Incident7.6382
7Clean Skin7.6365
8Strike Force7.6356
9Seventh Division7.7348
10Smoke and Mirrors8.5421

Season 3 (2004)

8.02 avg 10 episodes 8.6 → 8.8 52 min avg

Ep 1: 8.6 · 398 votesEp 2: 8.1 · 360 votesEp 3: 8.0 · 331 votesEp 4: 7.8 · 325 votesEp 5: 7.6 · 329 votesEp 6: 8.2 · 322 votesEp 7: 8.0 · 292 votesEp 8: 7.4 · 327 votesEp 9: 7.7 · 285 votesEp 10: 8.8 · 344 votes
Season 3 episodes - IMDb ratings
#TitleRatingVotes
1Project Friendly Fire8.6398
2The Sleeper8.1360
3Who Guards the Guards?8.0331
4A Prayer for My Daughter7.8325
5Love and Death7.6329
6Persephone8.2322
7Outsiders8.0292
8Celebrity7.4327
9Frequently Asked Questions7.7285
10The Suffering of Strangers8.8344

Season 4 (2005)

8.07 avg 10 episodes 8.2 → 8.3 52 min avg

Ep 1: 8.2 · 337 votesEp 2: 8.3 · 320 votesEp 3: 7.5 · 289 votesEp 4: 7.7 · 283 votesEp 5: 8.4 · 285 votesEp 6: 8.1 · 273 votesEp 7: 8.2 · 296 votesEp 8: 8.0 · 285 votesEp 9: 8.0 · 264 votesEp 10: 8.3 · 303 votes
Season 4 episodes - IMDb ratings
#TitleRatingVotes
1The Special: Part 18.2337
2The Special: Part 28.3320
3Divided They Fall7.5289
4Road Trip7.7283
5The Book8.4285
6The Innocent8.1273
7Syria8.2296
8The Russian8.0285
9The Sting8.0264
10Diana8.3303

Season 5 (2006)

7.96 avg 10 episodes 8.6 → 8.1 52 min avg

Ep 1: 8.6 · 344 votesEp 2: 8.4 · 305 votesEp 3: 7.7 · 260 votesEp 4: 7.7 · 279 votesEp 5: 8.4 · 277 votesEp 6: 7.5 · 250 votesEp 7: 8.0 · 256 votesEp 8: 7.3 · 252 votesEp 9: 7.9 · 254 votesEp 10: 8.1 · 246 votes
Season 5 episodes - IMDb ratings
#TitleRatingVotes
1Gas and Oil: Part 18.6344
2Gas and Oil: Part 28.4305
3The Cell7.7260
4World Trade7.7279
5The Message8.4277
6Hostage Takers: Part 17.5250
7Hostage Takers: Part 28.0256
8Agenda7.3252
9The Criminal7.9254
10Aftermath8.1246

Season 6 (2007)

8.08 avg 10 episodes 8.1 → 8.3 52 min avg

Ep 1: 8.1 · 265 votesEp 2: 8.2 · 265 votesEp 3: 7.8 · 240 votesEp 4: 7.8 · 232 votesEp 5: 7.9 · 230 votesEp 6: 8.2 · 233 votesEp 7: 8.1 · 232 votesEp 8: 8.4 · 237 votesEp 9: 8.0 · 221 votesEp 10: 8.3 · 239 votes
Season 6 episodes - IMDb ratings
#TitleRatingVotes
1The Virus: Part 18.1265
2The Virus: Part 28.2265
3The Kidnap7.8240
4The Extremist7.8232
5The Deal7.9230
6The Courier8.2233
7The Broadcast8.1232
8Infiltration8.4237
9Isolated8.0221
10The School8.3239

Season 7 (2008)

8.25 avg 8 episodes 8.5 → 8.7 52 min avg

Ep 1: 8.5 · 318 votesEp 2: 8.0 · 281 votesEp 3: 7.9 · 243 votesEp 4: 7.9 · 234 votesEp 5: 7.8 · 234 votesEp 6: 8.3 · 241 votesEp 7: 8.9 · 277 votesEp 8: 8.7 · 269 votes
Season 7 episodes - IMDb ratings
#TitleRatingVotes
1New Allegiances8.5318
2Split Loyalties8.0281
3Secrets and Lies7.9243
4The Tip-off7.9234
5On The Brink7.8234
6The Witness8.3241
7Darkest Hour8.9277
8Nuclear Strike8.7269

Season 8 (2009)

7.95 avg 8 episodes 8.4 → 8.2 52 min avg

Ep 1: 8.4 · 269 votesEp 2: 7.7 · 241 votesEp 3: 7.8 · 257 votesEp 4: 7.8 · 231 votesEp 5: 7.8 · 224 votesEp 6: 8.0 · 231 votesEp 7: 7.9 · 214 votesEp 8: 8.2 · 237 votes
Season 8 episodes - IMDb ratings
#TitleRatingVotes
1Episode #8.18.4269
2Episode #8.27.7241
3Episode #8.37.8257
4Episode #8.47.8231
5Episode #8.57.8224
6Episode #8.68.0231
7Episode #8.77.9214
8Episode #8.88.2237

Season 9 (2010)

8.06 avg 8 episodes 8.2 → 8.4 52 min avg

Ep 1: 8.2 · 250 votesEp 2: 7.9 · 229 votesEp 3: 7.6 · 223 votesEp 4: 7.7 · 224 votesEp 5: 7.8 · 215 votesEp 6: 8.4 · 231 votesEp 7: 8.5 · 222 votesEp 8: 8.4 · 241 votes
Season 9 episodes - IMDb ratings
#TitleRatingVotes
1Episode #9.18.2250
2Episode #9.27.9229
3Episode #9.37.6223
4Episode #9.47.7224
5Episode #9.57.8215
6Episode #9.68.4231
7Episode #9.78.5222
8Episode #9.88.4241

Season 10 (2011)

7.87 avg 6 episodes 7.7 → 8.6 53 min avg

Ep 1: 7.7 · 241 votesEp 2: 7.8 · 198 votesEp 3: 7.8 · 194 votesEp 4: 7.4 · 183 votesEp 5: 7.9 · 197 votesEp 6: 8.6 · 314 votes
Season 10 episodes - IMDb ratings
#TitleRatingVotes
1Episode #10.17.7241
2Episode #10.27.8198
3Episode #10.37.8194
4Episode #10.47.4183
5Episode #10.57.9197
6Episode #10.68.6314

Episode ratings and vote counts from IMDb. Poster, overview, and streaming data from TMDB. Data refreshed 2026-08-19.

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