| Season 1 | 2014 | 8.7/10 | ||
| 1 | Pilot |
 |
7.1 | |
| 2 | Earth Skills |
|
6.5 | |
| 3 | Earth Kills |
|
6.4 | |
| 4 | Murphy's Law |
|
7.0 | |
| 5 | Twilight's Last Gleaming |
|
7.9 | |
| 6 | His Sister's Keeper |
|
8.0 | |
| 7 | Contents Under Pressure |
|
8.3 | |
| 8 | Day Trip |
|
7.3 | |
| 9 | Unity Day |
 |
9.1 | |
| 10 | I Am Become Death |
|
9.3 | |
| 11 | The Calm |
|
8.1 | |
| 12 | We Are Grounders – Part I |
|
9.0 | |
| 13 | We Are Grounders – Part II |
|
9.1 |