| #2 |  The Exposed
| 2.5 |
| #3 |  The weakness
| 2 |
| #4 |  The Encounter
| 4 |
| #5 |  The Departure
| 4.13 |
| #6 |  The Change
| 3.89 |
| #7 |  The Sickness
| 3.67 |
| #8 |  The Reunion
| 3.67 |
| #9 |  The illusion
| 3 |
| #10 |  The proposal
| 2.5 |
| #11 |  The Ultimate
| 3.67 |
| #12 |  The Beginning
| 4.5 |
| #13 |  The Invasion
| 3.81 |
| #14 |  The Message
| 3.53 |
| #15 |  The Stranger
| 4.03 |
| #16 |  The Attack
| 3.5 |
| #17 |  The Alien
| 3.75 |
| #18 |  The Secret
| 3.6 |
| #19 |  The Predator
| 3.58 |
| #20 |  The Capture
| 4.06 |
| #21 |  The Underground
| 3.29 |
| #22 |  Das Experiment
| 3 |
| #23 |  The separation
| 2 |
| #24 |  The Forgotten
| 3.71 |
