Season 1 (2010)
7.46 avg 22 episodes 7.3 → 8.0 42 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | I Haven't Told You Everything | 7.3 | 634 |
| 2 | To Keep Us Safe | 7.3 | 469 |
| 3 | Protect Them from the Truth | 7.6 | 424 |
| 4 | A Matter of Life and Death | 7.4 | 384 |
| 5 | Casualties of War | 7.5 | 361 |
| 6 | Loyalty | 7.4 | 346 |
| 7 | I Know Who You Are | 7.3 | 315 |
| 8 | For the Good of Our Country | 7.4 | 314 |
| 9 | Your World to Take | 7.3 | 303 |
| 10 | Everything Will Change | 7.4 | 302 |
| 11 | And Then There Were More | 7.4 | 289 |
| 12 | Inostranka | 7.4 | 285 |
| 13 | Turnabout | 7.3 | 269 |
| 14 | A Message Back | 7.4 | 274 |
| 15 | Face Off | 7.7 | 293 |
| 16 | You Bury Other Things Too | 7.3 | 280 |
| 17 | Cut Off the Head | 7.3 | 272 |
| 18 | Strain | 7.5 | 266 |
| 19 | Us or Them | 7.5 | 266 |
| 20 | One Will Live, One Will Die | 7.7 | 274 |
| 21 | The Beginning of the End | 7.7 | 269 |
| 22 | Arrival | 8.0 | 343 |
