8.10 avg 9 episodes 8.4 → 8.6 44 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Retaliation | 8.4 | 37 |
| 2 | Those We Rely On | 8.0 | 30 |
| 3 | Officer Down | 7.7 | 28 |
| 4 | The Darkest Shift on the Scariest Night | 7.8 | 26 |
| 5 | Their Worst Day | 8.0 | 23 |
| 6 | Full Moon Rising | 8.1 | 23 |
| 7 | 100%, Every Time | 7.8 | 23 |
| 8 | Caught You, by Surprise | 8.5 | 23 |
| 9 | When Work Becomes Family | 8.6 | 23 |
8.74 avg 12 episodes 8.7 → 9.6 43 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | Mardi Gras | 8.7 | 25 |
| 2 | In the Blink of an Eye | 8.5 | 24 |
| 3 | Trust the Ones You're With | 8.5 | 23 |
| 4 | Fallen Brother | 8.6 | 23 |
| 5 | Guardians of the City | 8.3 | 27 |
| 6 | United We Stand | 8.5 | 20 |
| 7 | Triumph & Tragedy | 8.6 | 21 |
| 8 | Dark Side of the City | 8.6 | 19 |
| 9 | Dreams and Nightmares | 8.8 | 24 |
| 10 | Saints and Sinners | 8.8 | 18 |
| 11 | Katrina | 9.4 | 17 |
| 12 | Nightwatch: Memorable Cases and Chases | 9.6 | 12 |
8.82 avg 10 episodes 8.6 → 9.0 42 min avg
| # | Title | Rating | Votes |
|---|---|---|---|
| 1 | New Beginnings | 8.6 | 19 |
| 2 | Pride | 8.0 | 17 |
| 3 | The Ties That Bind | 9.2 | 14 |
| 4 | We Give Thanks | 9.1 | 14 |
| 5 | Heroes Among Us | 8.7 | 14 |
| 6 | Southern Comfort | 8.8 | 14 |
| 7 | 105 and Rising | 8.9 | 14 |
| 8 | Stranger Things | 8.8 | 14 |
| 9 | Brotherhood | 9.1 | 15 |
| 10 | The End Is Just the Beginning | 9.0 | 14 |