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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 (20,492 votes)
Episode average
8.0 -0.3 vs IMDb
Seasons
10
Streaming (US)
Amazon Prime Video · Peacock
Language
EN
Type
TV series

Rating trend: this show's seasons do not settle into one shape. Rising Shows ranks whole shows by the shape of their rating trend rather than one average score, which is how you find a show that got better rather than a show that started well.

Browse shows by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Oct 3, 2026 · 10 seasons indexed

Cast

Seasons

Season 1 (2002)

7.65 avg 6 episodes 7.2 → 8.2 51 min avg

Ep 1: 7.2 · 784 votesEp 2: 7.9 · 606 votesEp 3: 7.4 · 498 votesEp 4: 7.6 · 503 votesEp 5: 7.6 · 447 votesEp 6: 8.2 · 492 votes
Season 1 episodes - IMDb ratings
#TitleRatingVotes
1Thou Shalt Not Kill7.2784
2Looking After Our Own7.9606
3One Last Dance7.4498
4Traitor's Gate7.6503
5The Rose Bed Memoirs7.6447
6The Lesser of Two Evils8.2492

Season 2 (2003)

7.83 avg 10 episodes 7.5 → 8.5 52 min avg

Ep 1: 7.5 · 439 votesEp 2: 8.1 · 430 votesEp 3: 7.5 · 395 votesEp 4: 7.6 · 384 votesEp 5: 8.6 · 535 votesEp 6: 7.6 · 388 votesEp 7: 7.6 · 371 votesEp 8: 7.6 · 361 votesEp 9: 7.7 · 350 votesEp 10: 8.5 · 423 votes
Season 2 episodes - IMDb ratings
#TitleRatingVotes
1Legitimate Targets7.5439
2Nest of Angels8.1430
3Spiders7.5395
4Blood & Money7.6384
5I Spy Apocalypse8.6535
6Without Incident7.6388
7Clean Skin7.6371
8Strike Force7.6361
9Seventh Division7.7350
10Smoke and Mirrors8.5423

Season 3 (2004)

8.03 avg 10 episodes 8.6 → 8.8 52 min avg

Ep 1: 8.6 · 404 votesEp 2: 8.1 · 363 votesEp 3: 8.1 · 334 votesEp 4: 7.8 · 328 votesEp 5: 7.6 · 332 votesEp 6: 8.2 · 326 votesEp 7: 8.0 · 295 votesEp 8: 7.4 · 330 votesEp 9: 7.7 · 286 votesEp 10: 8.8 · 347 votes
Season 3 episodes - IMDb ratings
#TitleRatingVotes
1Project Friendly Fire8.6404
2The Sleeper8.1363
3Who Guards the Guards?8.1334
4A Prayer for My Daughter7.8328
5Love and Death7.6332
6Persephone8.2326
7Outsiders8.0295
8Celebrity7.4330
9Frequently Asked Questions7.7286
10The Suffering of Strangers8.8347

Season 4 (2005)

8.07 avg 10 episodes 8.2 → 8.3 52 min avg

Ep 1: 8.2 · 341 votesEp 2: 8.3 · 324 votesEp 3: 7.5 · 292 votesEp 4: 7.7 · 286 votesEp 5: 8.4 · 288 votesEp 6: 8.1 · 276 votesEp 7: 8.2 · 299 votesEp 8: 8.0 · 288 votesEp 9: 8.0 · 267 votesEp 10: 8.3 · 306 votes
Season 4 episodes - IMDb ratings
#TitleRatingVotes
1The Special: Part 18.2341
2The Special: Part 28.3324
3Divided They Fall7.5292
4Road Trip7.7286
5The Book8.4288
6The Innocent8.1276
7Syria8.2299
8The Russian8.0288
9The Sting8.0267
10Diana8.3306

Season 5 (2006)

7.98 avg 10 episodes 8.6 → 8.1 52 min avg

Ep 1: 8.6 · 347 votesEp 2: 8.4 · 308 votesEp 3: 7.8 · 262 votesEp 4: 7.7 · 282 votesEp 5: 8.4 · 282 votesEp 6: 7.6 · 253 votesEp 7: 8.0 · 259 votesEp 8: 7.3 · 255 votesEp 9: 7.9 · 257 votesEp 10: 8.1 · 249 votes
Season 5 episodes - IMDb ratings
#TitleRatingVotes
1Gas and Oil: Part 18.6347
2Gas and Oil: Part 28.4308
3The Cell7.8262
4World Trade7.7282
5The Message8.4282
6Hostage Takers: Part 17.6253
7Hostage Takers: Part 28.0259
8Agenda7.3255
9The Criminal7.9257
10Aftermath8.1249

Season 6 (2007)

8.08 avg 10 episodes 8.1 → 8.3 52 min avg

Ep 1: 8.1 · 267 votesEp 2: 8.2 · 267 votesEp 3: 7.8 · 242 votesEp 4: 7.8 · 234 votesEp 5: 7.9 · 232 votesEp 6: 8.2 · 235 votesEp 7: 8.1 · 234 votesEp 8: 8.4 · 239 votesEp 9: 8.0 · 223 votesEp 10: 8.3 · 240 votes
Season 6 episodes - IMDb ratings
#TitleRatingVotes
1The Virus: Part 18.1267
2The Virus: Part 28.2267
3The Kidnap7.8242
4The Extremist7.8234
5The Deal7.9232
6The Courier8.2235
7The Broadcast8.1234
8Infiltration8.4239
9Isolated8.0223
10The School8.3240

Season 7 (2008)

8.25 avg 8 episodes 8.5 → 8.7 52 min avg

Ep 1: 8.5 · 320 votesEp 2: 8.0 · 283 votesEp 3: 7.9 · 245 votesEp 4: 7.9 · 236 votesEp 5: 7.8 · 236 votesEp 6: 8.3 · 243 votesEp 7: 8.9 · 279 votesEp 8: 8.7 · 271 votes
Season 7 episodes - IMDb ratings
#TitleRatingVotes
1New Allegiances8.5320
2Split Loyalties8.0283
3Secrets and Lies7.9245
4The Tip-off7.9236
5On The Brink7.8236
6The Witness8.3243
7Darkest Hour8.9279
8Nuclear Strike8.7271

Season 8 (2009)

7.95 avg 8 episodes 8.4 → 8.2 52 min avg

Ep 1: 8.4 · 271 votesEp 2: 7.7 · 243 votesEp 3: 7.8 · 259 votesEp 4: 7.8 · 233 votesEp 5: 7.8 · 226 votesEp 6: 8.0 · 233 votesEp 7: 7.9 · 216 votesEp 8: 8.2 · 239 votes
Season 8 episodes - IMDb ratings
#TitleRatingVotes
1Episode #8.18.4271
2Episode #8.27.7243
3Episode #8.37.8259
4Episode #8.47.8233
5Episode #8.57.8226
6Episode #8.68.0233
7Episode #8.77.9216
8Episode #8.88.2239

Season 9 (2010)

8.06 avg 8 episodes 8.2 → 8.4 52 min avg

Ep 1: 8.2 · 252 votesEp 2: 7.9 · 232 votesEp 3: 7.6 · 225 votesEp 4: 7.7 · 226 votesEp 5: 7.8 · 218 votesEp 6: 8.4 · 234 votesEp 7: 8.5 · 225 votesEp 8: 8.4 · 244 votes
Season 9 episodes - IMDb ratings
#TitleRatingVotes
1Episode #9.18.2252
2Episode #9.27.9232
3Episode #9.37.6225
4Episode #9.47.7226
5Episode #9.57.8218
6Episode #9.68.4234
7Episode #9.78.5225
8Episode #9.88.4244

Season 10 (2011)

7.92 avg 6 episodes 7.8 → 8.6 53 min avg

Ep 1: 7.8 · 245 votesEp 2: 7.9 · 201 votesEp 3: 7.9 · 197 votesEp 4: 7.4 · 186 votesEp 5: 7.9 · 200 votesEp 6: 8.6 · 318 votes
Season 10 episodes - IMDb ratings
#TitleRatingVotes
1Episode #10.17.8245
2Episode #10.27.9201
3Episode #10.37.9197
4Episode #10.47.4186
5Episode #10.57.9200
6Episode #10.68.6318

Episode ratings and vote counts from IMDb. Poster, overview, and streaming data from TMDB. Data refreshed 2026-10-03.

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